Zombie Slayer involves killing Zombies and culminates in killing the Revenant Horror. It is widely considered to be the easiest Slayer, due to its low stats and predictable actions: however, inexperienced or weak players may struggle with defeating one.

Strategies

Tier I

The Tier I Revenant Horror is relatively easy to kill due to its low ❤ Health and ❁ Damage. Its only ability, Life Drain, drains the player's ❤ Health every 2.5s. Not a lot of gear is required to defeat a Tier I Revenant Horror as it is barely stronger than a basic Graveyard Zombie.

Slot	Name	Notes
	Undead Sword	The  Undead Sword should be enough to defeat a Tier I Revenant Horror due to its passive of dealing +100% damage to ༕ Undead mobs, especially when paired with a high level of Sharpness and Smite.
	Park Armor	An early-game armor set with decent ❤ Effective Health should be enough to get one through a Tier I Revenant Horror, such as  Park Armor or  Lapis Armor.
	Lapis Armor

Tier II

The Tier II Revenant Horror, while still relatively easy, is a decent step up from the Tier I variant. As you progress through Zombie Slayer, you will notice that the Revenant Horror's ❁ Damage is much, much lower than its ❤ Health: as a result, you can focus more on dealing damage.

The Revenant Horror, at Tier II, gains the Pestilence ability, which deals AoE damage. As a result, one should also prioritise efficient healing through items such as the  Wand of Healing and  Wand of Mending.

Slot	Name	Notes
	Undead Sword	The  Undead Sword should be enough to defeat a Tier II Revenant Horror due to its passive of dealing +100% damage to ༕ Undead mobs, especially when paired with a high level of Sharpness and Smite. Eventually, it can be upgraded into a  Revenant Falchion.
	Void Sword	Alternatively, you may use the  Void Sword alongside  Ender Armor to easily defeat the boss without much trouble due to its extremely high stats at this stage of the game, even when you are not in ⏣ The End.
	Hardened Diamond Armor	An armor set with decent ❤ Effective Health should be enough to get one through a Tier II Revenant Horror:  Ender Armor provides balanced ❤ Health and ❈ Defense, whereas  Hardened Diamond Armor provides high amounts of ❈ Defense.
	Ender Armor
	Zombie's Heart	The  Zombie's Heart, despite granting minimal ❤ Health, doubles one's ♨ Vitality when worn: as a result, it is useful for increasing all incoming healing, and upgrades into more powerful items. Although it may not be necessary for this tier, keep it in mind as it is helpful for future tiers.
	Wand of Healing	The  Wand of Healing and  Wand of Mending are useful healing items, countering the Revenant Horror's Life Drain and Pestilence abilities usefully.

Tier III

The Tier III Revenant Horror is a significant increase in difficulty when considering the previous tiers. At Tier III, the Revenant Horror gains the Enrage ability: every 40s, the Revenant Horror will increase its attack range by +50% and increase damage dealt from Pestilence by +500%.

It is imperative for players to get their damage up significantly, since killing the Revenant Horror quickly allows you to avoid its Enrage phase.

Slot	Name	Notes
	Revenant Falchion	The  Revenant Falchion is useful for defeating a Tier III Revenant Horror, due to its passive of dealing +150% more damage to ༕ Undead mobs. It is important to put a good reforge and  Hot Potato Books on one due to its low ❁ Damage and ❁ Strength: an  Aspect of the End or  Void Sword are useful alternatives.
	Strong Dragon Armor	Strong and  Unstable Dragon Armor grant substantial ❤ Effective Health in the early game, as well as decent ❁ Strength and ☠ Crit Damage respectively.
	Unstable Dragon Armor
	Crystallized Heart	The  Crystallized Heart, similar to its predecessor, doubles all ♨ Vitality when worn. It is outclassed by most helmets, but is great as a last resort if you are struggling to stay alive.
	Wand of Mending	The  Wand of Mending is useful for healing, granting decent ❤ Health regeneration: this allows you to counter the Revenant Horror's Life Drain and Pestilence abilities, especially when the latter is under the effect of Enrage.

Once you begin fighting this tier of the Revenant Horror, you should prioritise having a useful pet both for spawning and killing the boss.

Slot	Name	Notes
Rare Zombie PetEpic Zombie PetLegendary Zombie Pet	Zombie Pet	The  Zombie Pet is a useful early-game pet for fighting the Revenant Horror, due to its Bite Shield and Rotten Blade abilities that reduces damage taken from and increases damage dealt to ༕ Undead mobs. Additionally, the LEGENDARY variant increases the stats on ༕ Undead armor by up to +20%, which benefits players who use the  Zombie's Heart,  Crystallized Heart, and  Revived Heart.
Epic Ghoul Pet	Ghoul Pet	The  Ghoul Pet is best in slot for spawning the Revenant Horror, granting a 1.5x multiplicative increase on all Combat XP against Zombies. It outclasses the  Wolf Pet due to its 1.5x Combat XP multiplier at Lvl 100: the  Wolf Pet's +30 ☯ Combat Wisdom at Lvl 100 is equivalent to a 1.3x Combat XP multiplier, which is significantly less than the Ghoul Pet.
Legendary Wolf Pet	Wolf Pet	The LEGENDARY  Wolf Pet is decent for spawning the Revenant Horror if one does not possess a  Ghoul Pet.

Tier IV

The Tier IV Revenant Horror, despite not having any new abilities, has substantially higher ❤ Health and ❁ Damage from its predecessor, at 1.5m ❤ Health and 400 ❁ Damage. While the Tier IV Revenant Horror's damage may not appear as a considerable increase from its Tier III variant, this is increased by both Life Drain, Pestilence, and Enrage.

As is the case with previous tiers of the Revenant Horror, the best strategy would be to maintain a balance of dealing high damage and healing.

Slot	Name	Notes
	Reaper Falchion	The  Reaper Falchion is incredibly useful for spawning and fighting the Tier IV variant of the Revenant Horror, due to granting both +200% more damage to and +45 ☯ Combat Wisdom against ༕ Undead mobs.
	Strong Dragon Armor	Strong Dragon Armor grants decent ❁ Strength and ❈ Defense in the early game.  Shadow Assassin Armor grants less ❈ Defense but grants more ❤ Health, as well as granting both +100 ❁ Strength and +100% ☠ Crit Damage: however, it is significantly more expensive and more difficult to get. It is highly not recommended to use a set of armor that grants high ❤ Effective Health. Your armor contributes significantly to your ❁ Damage output: it is wiser to increase your healing or invest in Pets that grant high ❤ Effective Health, such as a  Turtle Pet.
	Shadow Assassin Armor
	Revived Heart	The  Revived Heart, similar to its predecessor, doubles all ♨ Vitality when worn. It is outclassed by most helmets, but is great as a last resort if you are struggling to stay alive even with a  Turtle Pet. Additionally, due to it being ༕ Undead, the Revived Heart is buffed by the LEGENDARY  Zombie Pet, though this is largely irrelevant due to its low base stats outside of its ability.
	Wand of Restoration	The  Wand of Restoration and  Atonement are both invaluable for healing, countering the Revenant Horror's abilities and buffed by the  Revived Heart.
	Wand of Atonement
	Zombie Sword	The  Zombie,  Ornate Zombie, and  Florid Zombie Sword are both useful for burst healing when used in combination with the aforementioned healing wands.
	Ornate Zombie Sword
	Florid Zombie Sword

A useful pet is important for fighting the Tier IV Revenant Horror.

Slot	Name	Notes
Legendary Lion Pet	Lion Pet	The  Lion Pet is a great pet for fighting the Tier IV Revenant Horror. Its Primal Force ability increases the ❁ Strength and ❁ Damage of your weapons; First Pounce increases the effectiveness of First Strike, Triple-Strike, and Combo, allowing you to deal more damage initially; King of the Jungle also allows you to deal +150% damage to mobs that have attacked you, which is equal to the increased damage againt ༕ Undead mobs gained from the  Zombie Pet's Rotten Blade ability. One added bonus of the pet is the fact that it is a  Foraging pet, which means it is extremely easy to level up due to the amount of Skill XP that Galatea gives compared to pets of other skills.
Legendary Zombie Pet	Zombie Pet	The  Zombie Pet is a decent pet for fighting the Revenant Horror as previously mentioned, though it is outclassed by better, more expensive options such as the  Lion Pet.
Legendary Wither Skeleton Pet	Wither Skeleton Pet	This pet is rather underestimated for its DPS potential, and it also has the bonus of being easy to level due to it being a  Mining pet. Its third ability essentially acts as a second Fire Aspect and its base stats are certainly not negligible. However, it is completely useless against the Tier V Atoned Horror due to it being immune to this ability.
Epic Turtle PetLegendary Turtle Pet	Turtle Pet	The  Turtle Pet is a budget pet for survivability if you are struggling with the boss. It should be used instead of swapping out your armor for a set that grants ❤ Effective Health.
Epic Ghoul Pet	Ghoul Pet	The  Ghoul Pet is best in slot for spawning the Revenant Horror, granting a 1.5x multiplicative increase on all Combat XP against Zombies. It outclasses the  Wolf Pet due to its 1.5x Combat XP multiplier at Lvl 100: the  Wolf Pet's +30 ☯ Combat Wisdom at Lvl 100 is equivalent to a 1.3x Combat XP multiplier, which is significantly less than the Ghoul Pet.
Legendary Wolf Pet	Wolf Pet	The LEGENDARY  Wolf Pet is decent for spawning the Revenant Horror if one does not possess a  Ghoul Pet.

Tier V

The Tier V Atoned Horror is completely unique from the Revenant Horror, both possessing completely unique abilities and having significantly more ❤ Health and ❁ Damage.

• Redemption allows the Atoned Horror to heal rapidly.
• Explosive Assault allows the Atoned Horror to throw explosive TNT at the player. A radius appears under the area where the TNT will land: damage dealt is dependent on the distance of the player to the center. This attack does a deceptively high amount of damage, so prioritise avoiding it even if it means dealing less damage to the boss unless it is on low health.
• Thermonuclear causes the Atoned Horror to stand still as it charges up, releasing a volley of lightning within a 7 block radius, damaging all players within depending on how many times they have been damaged. This damage will almost always instantly kill you, so do not make the mistake of trying to tank the attack.
  • Note that this ability will only be used after the boss has been alive for around 30 seconds, so you can ignore it if you can consistently kill the Atoned Horror before that time.
• The boss is also immune to most ๑ Ability Damage, meaning mage items such as the  Ink Wand or  Hyperion are mostly useless against it in terms of their abilities.

To kill the Atoned Horror, a popular strategy is to hold down ⇧ Shift+S and repeatedly hit the boss in order to defeat it. By sneaking, you can avoid moving too fast to the point where you can no longer hit the boss while still avoiding the TNT. This strategy works best with around 370+ ✦ Speed.

While the Atoned Horror is charging up its Thermonuclear attack, it can still be damaged. As a result, if its ❤ Health is low enough, you can kill it while it is charging up and avoid the lightning.

Slot	Name	Notes
	Halberd of the Shredded	The  Halberd of the Shredded is a very useful weapon for killing the Atoned Horror, dealing +250% damage to ༕ Undead mobs and granting +45 ☯ Combat Wisdom against them. Its Throw ability allows you to throw your halberd consecutively, increasing your damage each time you throw it alongside the ✎ Mana cost, and is one of the few abilities that can damage the Atoned Horror. It is also often used to kill the boss in one hit by endgame players, due to its ability capping out at inflicting 160% damage of a melee attack, which works even if you hold another weapon when the ability connects.
	Giant's Sword	The  Giant's Sword and  Dark Claymore deal incredibly high ❁ Damage and have increased Ⓢ Swing Range, allowing you to damage the Atoned Horror from further. However, they have incredibly high requirements and are difficult to get, requiring completion of Floor VI and Master Mode - Floor VII respectively.
	Dark Claymore
	Necron's Armor	Necron's Armor is a useful armor set for fighting the Atoned Horror, granting high ❁ Strength and ☠ Crit Damage: however, it is outclassed by  Burning Crimson Armor and, to an extent,  Reaper Armor for those struggling with survivability. The  Necron's Helmet is often swapped out for a more useful alternative, such as the  Primordial Helmet or  Crown of Avarice.  Shadow Assassin Armor may suffice for this boss as well if upgraded enough, though it is not recommended.
	Reaper Armor	Reaper Armor, despite having lower stats than  Necron's Armor, grants a significant ❈ Defense and ❁ Damage increase against ༕ Undead mobs, an increase to healing from Healing Wands, and an Enrage ability that grants +100 ✦ Speed, +100 ❁ Strength, and +100 ❁ Damage for 6s. Its Zombie Bulwark bonus is also useful for players who struggle with survivability.
	Burning Crimson Armor	Burning,  Fiery, and  Infernal Crimson Armor are the best sets of armor for fighting the Atoned Horror, as well as almost every general purpose during combat. Not only does it grant higher stats than  Necron's Armor, but its Dominus tiered bonus also grants higher DpS due to its bonus ⫽ Ferocity and Ⓢ Swing Range (and bonus ❁ Damage at Infernal) and its swipe attack. However, it is important to note that it is incredibly expensive to properly upgrade  Crimson Armor to Burning, much less Fiery and Infernal.
	Fiery Crimson Armor
	Infernal Crimson Armor
	Primordial Helmet	The  Primordial Helmet is an excellent budget choice both for fighting the Atoned Horror and general combat both inside and outside of Dungeons. Converting ❁ Strength to ☠ Crit Damage and dealing +50% ❁ Damage every 3 strikes, it is excellent for DpS: despite being ever so slightly worse than a  Warden Helmet, the price gap between the two and the lack of a ✦ Speed penalty justifies using the  Primordial Helmet over a  Warden Helmet.
	Reaper Mask	The  Reaper Mask, which doubles all ♨ Vitality, should only be used if your ❤ Effective Health is too low to survive the boss consistently even with full  Reaper Armor.
	Wand of Atonement	The  Wand of Atonement and  Florid Zombie Sword are invaluable for healing, especially if you are taking large amounts of damage from the Atoned Horror's Thermonuclear attack. The former is useful for consistent healing over a long period, whereas the latter is superior for quick, one-time burst healing.
	Florid Zombie Sword
	Mana Flux Power Orb	The  Mana Flux and  Overflux Power Orb are useful for extra healing and ❁ Strength: despite being decently expensive, they will serve as decent QoL and are also useful in general combat.
	Overflux Power Orb

A useful pet is also required for fighting the Atoned Horror: preferably, something that increases your damage output instead of survivability is preferred.

Slot	Name	Notes
	Ankylosaurus Pet	The  Ankylosaurus Pet, despite seeming quite unassuming with its low base stats, has proven itself to be one of the best pets outside of dungeons: converting 50% of your ❈ Defense to ❁ Strength (up to +500 ❁ Strength), you can easily get a free +500 ❁ Strength, which is a very significant buff.
Legendary Lion Pet	Lion Pet	The  Lion Pet is a useful alternative pet for fighting the Tier V Revenant Horror. Its perks are geared towards increasing your first-hit damage, but the LEGENDARY perk does allow it to keep up for the rest of the fight as the boss will be constantly applying chip damage.
Legendary Golden Dragon Pet	Golden Dragon Pet	The  Golden Dragon Pet is the ultimate pet not only for Zombie Slayer but also for general combat, granting absurd amounts of both ❁ Strength and ✯ Magic Find: however, costing over 500,000,000 coins and several Perfect Gemstones, it is far too costly for the vast majority of players to utilise.
Epic Ghoul Pet	Ghoul Pet	The  Ghoul Pet is best in slot for spawning the Revenant Horror, granting a 1.5x multiplicative increase on all Combat XP against Zombies. It outclasses the  Wolf Pet due to its 1.5x Combat XP multiplier at Lvl 100: the  Wolf Pet's +30 ☯ Combat Wisdom at Lvl 100 is equivalent to a 1.3x Combat XP multiplier, which is significantly less than the Ghoul Pet.
Legendary Wolf Pet	Wolf Pet	The LEGENDARY  Wolf Pet is decent for spawning the Revenant Horror if one does not possess a  Ghoul Pet.

Item Explanations

This section is dedicated to analysing each item unlocked from Zombie Slayer, their use cases, and whether they are worth getting or not.

Slot	Name	Req.	Notes
	Wand of Healing	Zombie Slayer I	The  Wand of Healing is great in the early game, gaining +60 ❤ Health over the duration of 7s for the low cost of 60 ✎ Mana. It is exceptionally cheap, takes very little materials to craft, and can be upgraded into more useful variants further down the line.
	Zombie Ring	Zombie Slayer II	The  Zombie Ring reduces damage taken by ༕ Undead mobs by 10%. It is incredibly cheap and is essentially free Magical Power.
	Revenant Falchion	Zombie Slayer III	The  Revenant Falchion, as previously outlined, is a useful weapon in the early stages of Zombie Slayer: depending on your primary weapon, this can prove to be useful against the Revenant Horror due to its +150% damage bonus to ༕ Undead mobs. However, if you own a stronger weapon like a  Aspect of the Dragons,  Super Cleaver,  Hyper Cleaver, or  Giant Cleaver, it is not recommended to use one until you have the requirements and prerequisites to craft a  Reaper Falchion.

Attributes

This section of the guide details useful Attributes for fighting the Revenant Horror.

Slot	Name	Stats	Notes
	Flash Shard Light Elemental	+1-10 ❁ Strength	Total of +50 ❁ Strength with all Elemental Shards maxed out. Buffed by the Echo of Elemental attribute, increasing the effect of these attributes by +20% to a total of 60 ❁ Strength. This is not necessarily recommended, as the attribute is expensive and the stat boost minuscule. Echo of Elemental can be improved by +50% via Echo of Echoes, increasing the total to 65 ❁ Strength.
	Quake Shard Stone Elemental	+1-10 ❁ Strength
	Bolt Shard Lightning Elemental	+1-10 ❁ Strength
	Aero Shard Wind Elemental	+1-10 ❁ Strength
	Tempest Shard Storm Elemental	+1-10 ❁ Strength
	Zombie Soldier Shard Undead Ruler	+3-30% ❁ Damage on ༕ Undead mobs	Grants +3-30% more damage on ༕ Undead mobs. Buffed by the Echo of Ruler attribute, increasing the effect of this attribute by +20% and bringing the total damage up to +36%. Echo of Ruler can be further buffed by Echo of Echoes, bringing the total damage increase up to +39%.
	Tank Zombie Shard Undead Resistance	+4-40 ❈ Defense on ༕ Undead mobs	Grants +4-40 ❈ Defense on ༕ Undead mobs. Buffed by the Echo of Resistance attribute, increasing the effect of this attribute by +20% and bringing the ❈ Defense bonus up to +48 ❈. Echo of Resistance can be further buffed by Echo of Echoes, bringing the ❈ Defense bonus up to +52 ❈.
	Caiman Shard Echo of Ruler	Ruler attributes are +2-20% stronger	Buffs all Ruler attributes by +20%. Can be further upgraded by Echo of Echoes.
	Alligator Shard Echo of Resistance	Resistance attributes are +2-20% stronger	Buffs all Resistance attributes by +20%. Can be further upgraded by Echo of Echoes.
	Tiamat Shard Echo of Echoes	Echo attributes are +5-50% stronger
	Shellwise Shard Shell	+10-100% chance to negate knockback Knockback immunity at Lvl 10	Grants a +10-100% chance to negate knockback, gaining knockback immunity at max level. Maxing this attribute allows you to use another Pet Item instead of being locked to the  Dwarf Turtle Shelmet.
	Barbarian Duke X Shard Warrior	Increases all melee damage dealt by +2.5-25%.
	Spike Shard Payback	When hit, your next hit deals +2.5-25% damage.	Requires  Turbo Fishing Net to hunt.
	Power Dragon Shard Elite	Grants +30% more ❁ Damage against bosses and mini-bosses.	Despite normally dropping from Master Mode - Floor VII, you can fuse  Burningsoul Shards into  Power Dragon Shards, allowing you to max out this attribute very quickly.  Burningsoul Shards are obtained by hunting Blaze Slayer minibosses, but they can also be obtained very easily by placing traps in the ⏣ Smoldering Tomb.
	Apex Dragon Shard Veteran	Grants +10 ☯ Combat Wisdom.	Despite normally dropping from Master Mode - Floor VII, you can fuse  Power Dragon Shards into  Apex Dragon Shards, allowing you to max out this attribute very quickly through the method described above. However, this is not a very efficient use of your Attribute Shards, and this method should only be used if you have an excess of  Power Dragon Shards available, whether you are on ♲ Ironman or not. Normal profiles should instead just buy this Shard from the Bazaar.