TzKal-Zuk

NormalEnraged
TzKal-Zuk
Released	1 June 2017 (Update)
Also called	Zuk
Members	Yes
Combat level	1,400
Size	7x7
Examine	An ancient adversary to the TzHaar.
Combat info
XP bonus	+57.5%
Max hit	148
Aggressive	Yes
Poisonous	No
Attack style	Typeless Magic, Typeless Ranged
Attack speed	10 ticks (6.0 seconds)
Slayer info
Slayer level	None
Slayer XP	101,890 xp
Category	TzHaar
Assigned by
Combat stats
Aggressive stats
Defensive stats
Immunities
Poison	Immune
Venom	Immune
	Open in DPS calculator
Advanced data
Monster ID	7706

This article has a strategy guide.

All information on mechanics and strategy will be on this page.

TzKal-Zuk, often referred to as Zuk, is the last monster encountered in the Inferno. It is currently the third strongest monster in Old School RuneScape, and the second strongest monster that must be challenged alone.

Players can pay 100 slayer reward points to have Duradel or Nieve assign TzHaar as a slayer assignment. When players have TzHaar as a slayer task, they will be prompted with an option to be assigned 1 TzTok-Jad or 1 TzKal-Zuk; the latter requires having killed TzKal-Zuk at least once before being able to have him assigned. Players who succeed in defeating it on task will receive 101,890 Slayer experience, for a total of ~125,000 Slayer experience with the experience gained from the waves.

History[edit | edit source]

Sometime prior to the Fifth Age, TzKal-Zuk was imprisoned behind the Ancestral Glyph within the Inferno.

During the Fifth Age^{[confirmation needed]}, the TzHaar in Mor Ul Rek sought to increase the depth in which they incubated their eggs in order to have newly hatched TzHaar gain distant memories of their ancestors.^[2]^[3] However, when they attempted to incubate their eggs deeper and deeper within the birthing pool,^[4] it collapsed and the Inferno was discovered by the TzHaar, which they believed to be an ancient incubation chamber.^[5] Deciding to test the chamber, the TzHaar took eggs from creatures in the Fight Cave,^[6] only to realise that they became feral and much more powerful.^[7]

Zuk, imprisoned within, managed to gain control over the feral TzHaar.^[8] Unable to keep the threat under control, the TzHaar sought adventurers to reduce the number of offspring within the Inferno.^[9]^[10] Adventurers who have battled through many waves of them will witness the breaking down of TzKal-Zuk's prison, and must battle with him.^[11]

Fight overview[edit | edit source]

As TzKal-Zuk is isolated from the platform the player is on, it cannot be attacked with melee. Only ranged or magic attacks will be able to reach Zuk.

As the fight starts, a shield will appear to offer protection from Zuk's attacks. The shield will move, so players will need to move alongside it to avoid taking damage from Zuk. If the player is not covered by the shield when Zuk attacks, they run the risk of taking massive damage; Zuk is extremely accurate and can kill a player from full hitpoints (including over max) and its attacks cannot be tick-eaten.

The projectile attack performs a hybrid accuracy roll of a mage and range attack based off of the player's and Zuk's stats, which rolls the average of the player's effective Ranged defence and effective Magic defence against the average of Zuk's effective Ranged accuracy and effective Magic accuracy.^[12] The same goes for the projectile's damage, which consists of a single roll between 0 and the average of Zuk's maximum Magic hit and maximum Ranged hit.^[1]

Throughout the fight, Zuk will spawn minions:

Periodically, a Jal-Xil (ranger) and Jal-Zek (mager) will appear throughout the fight and attack the shield; once attacked, they will instead target the player. If the shield takes too much damage, it will be destroyed, leaving the player fully vulnerable to Zuk's attacks.
At 480 hitpoints, a JalTok-Jad will appear and attack the shield.
At 240 hitpoints, Zuk will become enraged as it fights for its life, attacking 3 ticks (1.8s) faster and summoning four Jal-MejJaks on the lava in front of it. Once attacked, they will stop healing Zuk and bombard the player's area for 5-10 damage with area-of-effect attacks.

Any remaining minions when TzKal-Zuk is killed will automatically die with it.

Drops[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Jal-nib-rek	1	1/100; 1/75^{[d 1]}	Not sold	N/A

^ Jal-nib-rek drop rate is 1/75 if TzKal-Zuk is killed while on a TzHaar slayer task.

Rewards[edit | edit source]

Should players manage to defeat TzKal-Zuk, they will be awarded the untradeable infernal cape, which is the best melee cape in the game, along with 16,440 Tokkul (doubled if the player has completed the Elite tier of the Karamja Diary).

There is also a 1/100 chance of receiving a Jal-nib-rek pet upon defeating TzKal-Zuk. Outside, players may give TzHaar-Ket-Keh any unwanted infernal capes for a 2nd chance at a Jal-nib-rek, having also a 1/100 chance.

When exchanging the cape, you increase your effective chance to ~1/50 to receive the pet (~1/43 on slayer task).

Combat Achievements[edit | edit source]

There are 12 Combat Achievement tasks (totalling 69 points) available for TzKal-Zuk.

Name	Description	Type	Tier	Comp%
Half-Way There	Kill a Jal-Zek within the Inferno.	Kill Count	Elite (4 pts)	10.4%
Nibblers, Begone!	Kill Tzkal-Zuk without letting a pillar fall before wave 67.	Perfection	Master (5 pts)	2.5%
No Luck Required	Kill Tzkal-Zuk without being attacked by TzKal-Zuk and without taking damage from a JalTok-Jad.	Perfection	Grandmaster (6 pts)	4.6%
Budget Setup	Kill Tzkal-Zuk without equipping a Twisted Bow within the Inferno.	Restriction	Grandmaster (6 pts)	3.1%
Playing with Jads	Complete wave 68 of the Inferno within 30 seconds of the first JalTok-Jad dying.	Mechanical	Grandmaster (6 pts)	0.6%
Nibbler Chaser	Kill Tzkal-Zuk without using any magic spells during any wave in the Inferno.	Restriction	Grandmaster (6 pts)	0.5%
Jad? What Are You Doing Here?	Kill Tzkal-Zuk without killing the JalTok-Jad which spawns during wave 69.	Restriction	Grandmaster (6 pts)	0.8%
Inferno Speed-Runner	Complete the Inferno in less than 65 minutes.	Speed	Grandmaster (6 pts)	0.7%
The Floor Is Lava	Kill Tzkal-Zuk without letting Jal-ImKot dig during any wave in the Inferno.	Mechanical	Grandmaster (6 pts)	0.5%
Facing Jad Head-on II	Kill Tzkal-Zuk without equipping any range or mage weapons before wave 69.	Restriction	Grandmaster (6 pts)	0.5%
Inferno Grandmaster	Complete the Inferno 5 times.	Kill Count	Grandmaster (6 pts)	1%
Wasn't Even Close	Kill Tzkal-Zuk without letting your hitpoints fall below 50 during any wave in the Inferno.	Restriction	Grandmaster (6 pts)	0.8%

Changes[edit | edit source]

Date	Changes
19 January 2022 (update)	Dying at the same moment as killing TzKal-Zuk now correctly subtracts one kill count from a slayer task.
1 December 2021 (update)	The minimum HiScores killcount required for TzKal-Zuk has been lowered from 2 to 1.
13 January 2021 (update)	Zuk's shield no longer vanishes right as he dies.

Gallery[edit | edit source]

The TzKal-Zuk Steam Trading Card.
The TzKal-Zuk Steam Profile Background.

Trivia[edit | edit source]

"TzKal" in the TzHaar language translates into "Champion of the Fire".
Although TzKal-Zuk is referred to as "him" when it becomes enraged by TzHaar-Ket-Keh, Jal-Nib-Rek mentions "Zuk is mum".
TzKal-Zuk is one of the first pieces of content conceived in Old School RuneScape that went on to be used in RuneScape. TzKal-Zuk is a demigod warlord from the Second Age who acts as Ful's general in the Elder God Wars Dungeon.
- The RuneScape variant of Zuk uses a full humanoid model (with feet) and primarily attacks with a massive obsidian sword, though he is also capable of using magic attacks; he is not capable of using ranged attacks.
- The RuneScape variant also has a combat level of 14,000, ten times that of the Old School Runescape variant.
Previously, TzKal-Zuk was described by TzHaar-Ket-Keh as being one of the many newly-hatched feral TzHaar that rose to dominance over its brethren. This no longer appears to be true, and TzHaar-Ket-Keh now states that he doesn't know where TzKal-Zuk came from. This change was likely done to keep TzKal-Zuk's lore in Old School RuneScape consistent with his backstory in RuneScape.
TzKal-Zuk had a festive override wearing a santa hat during the 2020, 2021, 2022, and 2023 Christmas events.

Notes[edit | edit source]

^ The damage roll for Zuk's projectile attack consists of a single roll between 0 and the average of its maximum Magic hit and maximum Ranged hit.^[1] The max hit of the mage attack is 128, while the range attack's max hit is 169. The melee max hit is 251, but it is never used.

References[edit | edit source]

^ ^1.0 ^1.1 Jagex. Mod Ash's Twitter account. 27 September 2023. Archived from the original on 27 September 2023. Mod Ash: "Your description of "Zuk doing 1 damage roll, with the maxhit being the avg of it's mage+range maxhit" is the correct interpretation. (...)"
^ TzHaar-Ket-Keh. Old School RuneScape. "When incubated in lava, a hatched TzHaar retains knowledge and memories of ancestors who returned to the lava."
^ TzHaar-Ket-Keh. Old School RuneScape. "...[memories] about earliest ancestors were not being retained. We experiment. We increased the depth at which the eggs are incubated. Over time this worked, newly hatched TzHaar had more memories of lost history!"
^ TzHaar-Ket-Keh. Old School RuneScape. "...we kept pushing it. We wanted answers, but too deep we went."
^ TzHaar-Ket-Keh. Old School RuneScape. "Eventually the pool collapsed into a sink hole, huge Inferno there. This was big ancient incubation chamber."
^ TzHaar-Ket-Keh. Old School RuneScape. "We decide to experiment. We take eggs from creatures in Fight Cave and incubate them."
^ TzHaar-Ket-Keh. Old School RuneScape. "We hatched eggs in there and it was not a good decision. They were so different, bigger, stronger and fought each other for dominance."
^ TzHaar-Ket-Keh. Old School RuneScape. "He controls those creatures in the prison. TzKal-Zuk, as we call him...is hungry. Hungry for memories, memories beyond the Inferno, which only TzHaar in the city can provide."
^ TzHaar-Ket-Keh. Old School RuneScape. "...we hoped you, with your fancy JalYt weaponry, would be able to help hold back [Zuk's] creatures."
^ TzHaar-Ket-Rak. Old School RuneScape. "Deep in inferno, many offspring of TzTok-Jad [...their] offspring need dealing with. A challenge for you perhaps, if you're brave enough."
^ TzHaar-Ket-Keh. Old School RuneScape. "Oh no! TzKal-Zuk's prison is breaking down. This not meant to have happened. There's nothing I can do for you now JalYt!"
^ Jagex. Mod Ash's Twitter account. 10 July 2022. Archived from the original on 22 July 2022. Mod Ash: "It looks at your effective ranged defence and your effective magic defence, and takes the average (i.e. add the two numbers, divide by 2). It does the same for the NPC's effective ranged & magic accuracy. It rolls the average accuracy against the average defence. The max hit's calculated off the NPC's stats too, taking its ranged max hit and magic max hit, and using an average of those two numbers."

Predecessor	Title	Successor
Great Olm	Strongest monster in RuneScape	Verzik Vitur

[14] Jal-nib-rek drop rate is 1/75 if TzKal-Zuk is killed while on a TzHaar slayer task.

[2] The damage roll for Zuk's projectile attack consists of a single roll between 0 and the average of its maximum Magic hit and maximum Ranged hit.^[1] The max hit of the mage attack is 128, while the range attack's max hit is 169. The melee max hit is 251, but it is never used.

[damage-1] 1.0 ^1.1 Jagex. Mod Ash's Twitter account. 27 September 2023. Archived from the original on 27 September 2023. Mod Ash: "Your description of "Zuk doing 1 damage roll, with the maxhit being the avg of it's mage+range maxhit" is the correct interpretation. (...)"

[3] TzHaar-Ket-Keh. Old School RuneScape. "When incubated in lava, a hatched TzHaar retains knowledge and memories of ancestors who returned to the lava."

[4] TzHaar-Ket-Keh. Old School RuneScape. "...[memories] about earliest ancestors were not being retained. We experiment. We increased the depth at which the eggs are incubated. Over time this worked, newly hatched TzHaar had more memories of lost history!"

[5] TzHaar-Ket-Keh. Old School RuneScape. "...we kept pushing it. We wanted answers, but too deep we went."

[6] TzHaar-Ket-Keh. Old School RuneScape. "Eventually the pool collapsed into a sink hole, huge Inferno there. This was big ancient incubation chamber."

[7] TzHaar-Ket-Keh. Old School RuneScape. "We decide to experiment. We take eggs from creatures in Fight Cave and incubate them."

[8] TzHaar-Ket-Keh. Old School RuneScape. "We hatched eggs in there and it was not a good decision. They were so different, bigger, stronger and fought each other for dominance."

[9] TzHaar-Ket-Keh. Old School RuneScape. "He controls those creatures in the prison. TzKal-Zuk, as we call him...is hungry. Hungry for memories, memories beyond the Inferno, which only TzHaar in the city can provide."

[10] TzHaar-Ket-Keh. Old School RuneScape. "...we hoped you, with your fancy JalYt weaponry, would be able to help hold back [Zuk's] creatures."

[11] TzHaar-Ket-Rak. Old School RuneScape. "Deep in inferno, many offspring of TzTok-Jad [...their] offspring need dealing with. A challenge for you perhaps, if you're brave enough."

[12] TzHaar-Ket-Keh. Old School RuneScape. "Oh no! TzKal-Zuk's prison is breaking down. This not meant to have happened. There's nothing I can do for you now JalYt!"

[13] Jagex. Mod Ash's Twitter account. 10 July 2022. Archived from the original on 22 July 2022. Mod Ash: "It looks at your effective ranged defence and your effective magic defence, and takes the average (i.e. add the two numbers, divide by 2). It does the same for the NPC's effective ranged & magic accuracy. It rolls the average accuracy against the average defence. The max hit's calculated off the NPC's stats too, taking its ranged max hit and magic max hit, and using an average of those two numbers."

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v • t • e Inferno
Monsters	Jal-Nib Jal-MejRah Jal-Ak Jal-AkRek-Mej Jal-AkRek-Xil Jal-AkRek-Ket Jal-ImKot Jal-Xil Jal-Zek JalTok-Jad Yt-HurKot TzKal-Zuk Jal-MejJak
Items	Infernal cape Jal-nib-rek
Related	Inferno (music track) Ancestral Glyph Rocky support

TzKal-Zuk

Contents

History[edit | edit source]

Fight overview[edit | edit source]

Drops[edit | edit source]

Rewards[edit | edit source]

Combat Achievements[edit | edit source]

Changes[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

Notes[edit | edit source]

References[edit | edit source]

Navigation menu

TzKal-Zuk

History[edit | edit source]

Fight overview[edit | edit source]

Drops[edit | edit source]

Rewards[edit | edit source]

Combat Achievements[edit | edit source]

Changes[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

Notes[edit | edit source]

References[edit | edit source]

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