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Released1 June 2017 (Update)
Also calledZuk
Combat level1,400
ExamineAn ancient adversary to the TzHaar.
Combat info
XP bonus+57.5%
Max hit251
Attack styleTypeless Magic, Typeless Ranged
Attack speedMonster attack speed 10.png
Slayer icon.png Slayer info
Slayer levelNone
Slayer XP101,890 xp
Assigned byChaeldar chathead.png Nieve chathead.png Duradel chathead.png
Combat icon.png Combat stats
Hitpoints icon.pngAttack icon.pngStrength icon.pngDefence icon.pngMagic icon.pngRanged icon.png
Attack icon.png Aggressive stats
Monster attack bonusMonster strength bonusMagic icon.pngMonster magic strength bonusRanged icon.pngMonster ranged strength bonus
Defence icon.png Defensive stats
White dagger.pngWhite scimitar.pngWhite warhammer.pngMagic icon.pngRanged icon.png
Advanced data
Monster ID7706

TzKal-Zuk, often referred to as Zuk, is the last monster encountered in the Inferno. It is currently the second strongest monster in Old School RuneScape, and the 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.[1][2] However, when they attempted to incubate their eggs deeper and deeper within the birthing pool,[3] it collapsed and the Inferno was discovered by the TzHaar, which they believed to be an ancient incubation chamber.[4] Deciding to test the chamber, the TzHaar took eggs from creatures in the Fight Cave,[5] only to realise that they became feral and much more powerful.[6]

A piece of artwork depicting a player facing TzKal-Zuk.

Zuk, imprisoned within, manages to gain control over the feral TzHaar.[7] Unable to keep the threat under control, the TzHaar seek adventurers to reduce the number of offspring within the Inferno.[8][9] Adventurers who have battled through many waves of them will witness the breaking down of TzKal-Zuk's prison, and must battle with him.[10]

Strategy[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 it.

The twisted bow is the most effective weapon to use against Zuk, followed by the Bow of Faerdhinen. The toxic blowpipe is also recommended for killing the Jal-Xil and Jal-MejJaks that appear during the fight.

During the fight, a shield will appear to protect the player from Zuk's attacks. The shield has 600 hitpoints and will move, so players will need to move alongside it to avoid taking damage from Zuk. If the player does not get behind the shield when Zuk attacks, they run the risk of taking massive damage from its attacks. It is possible for Zuk's attacks to miss or deal survivable damage, though this cannot be relied on. Tick eating does not work against Zuk. The toxic blowpipe's short range may lure the player out of the shield's protection when attacking a monster, so caution should be exercised when wielding it.

In addition to this, a Jal-Xil (ranger) and Jal-Zek (mager) will appear periodically throughout the fight and attack the shield. It is imperative to keep them off the shield: if the shield is destroyed, the player's chances of survival are essentially zero. Pray accordingly against the two and focus on Zuk once both minions are killed.

When Zuk reaches 480 hitpoints, a JalTok-Jad will appear and attack the shield. Tag and kill it immediately as leaving it alive can be problematic, especially when more Jal-Xil and Jal-Zeks reappear.

At 240 hitpoints, Zuk will attack faster and 4 Jal-MejJaks (healers) will appear from the lava and start healing Zuk. The healers will heal about 25 hitpoints on average, and will quickly heal Zuk if not attacked. Once attacked, the healer will attack the area in front of it, dealing 7–10 damage with their area-of-effect attacks. Kill the healers before focusing on Zuk again. It is best to wait for the Jal-Xil and Jal-Zek to respawn again before triggering the appearance of the healers to kill them without much inconvenience. The toxic blowpipe is the strongest weapon against the healers.

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.png: TzKal-Zuk drops Jal-nib-rek with rarity 1/100 in quantity 1Jal-nib-rek11/100; 1/75[a 1]Not soldN/A
  1. ^ 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 it. 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.

Trivia[edit | edit source]

  • Although TzKal-Zuk is referred to as "him" when it becomes enraged and by TzHaar-Ket-Keh, Jal-Nib-Rek mentions "Zuk is mum".
  • TzKal-Zuk is one of the only pieces of content conceived in Old School RuneScape that went on to be used in RuneScape. TzKal-Zuk acts as Ful's general in the Elder God Wars Dungeon and has a completely different lore surrounding him.
  • TzKal-Zuk had a festive override wearing a santa hat during the 2020 and 2021 Christmas events.

Changes[edit | edit source]

Date Changes
19 January 2022

Dying at the same moment as killing TzKal-Zuk now correctly subtracts one kill count from a slayer task.

1 December 2021

The minimum HiScores killcount required for TzKal-Zuk has been lowered from 2 to 1.

13 January 2021

Zuk's shield no longer vanishes right as he dies.

References[edit | edit source]

  1. ^ TzHaar-Ket-Keh, Old School RuneScape. "When incubated in lava, a hatched TzHaar retains knowledge and memories of ancestors who returned to the lava."
  2. ^ 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!"
  3. ^ TzHaar-Ket-Keh, Old School RuneScape. "...we kept pushing it. We wanted answers, but too deep we went."
  4. ^ TzHaar-Ket-Keh, Old School RuneScape. "Eventually the pool collapsed into a sink hole, huge Inferno there. This was big ancient incubation chamber."
  5. ^ TzHaar-Ket-Keh, Old School RuneScape. "We decide to experiment. We take eggs from creatures in Fight Cave and incubate them."
  6. ^ 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."
  7. ^ TzHaar-Ket-Keh, Old School RuneScape. "He controls those creatures in the prison. TzKal-Zuk, as we call hungry. Hungry for memories, memories beyond the Inferno, which only TzHaar in the city can provide."
  8. ^ TzHaar-Ket-Keh, Old School RuneScape. "...we hoped you, with your fancy JalYt weaponry, would be able to help hold back [Zuk's] creatures."
  9. ^ 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."
  10. ^ TzHaar-Ket-Keh, Old School RuneScape. "Oh no! TzHal-Zuk's prison is breaking down. This not meant to have happened. There's nothing I can do for you now JalYt!"
Predecessor Title Successor
Great Olm Strongest monster in RuneScape Verzik Vitur