Two wave survival challenges. Fight Caves ends with TzTok-Jad and awards the fire cape. Inferno ends with TzKal-Zuk and awards the infernal cape.

Reach them with ::fightcaves and ::inferno.

Wave structure

	Fight Caves	Inferno
Total waves	63	69
Boss wave	63, TzTok-Jad	67 single Jad, 68 triple Jad, 69 TzKal-Zuk
Reward	Fire cape	Infernal cape

Inferno's last three waves are the whole challenge. Wave 67 is a single Jad, wave 68 is three Jads at once, and wave 69 is Zuk.

Your supporter rank skips waves

This is the part that changes how these run in practice. Rank sets the wave you begin on.

Rank	Fight Caves start	Inferno start
No rank	45	50
Bronze Supporter	52	57
Iron Supporter	54	61
Gold Supporter	56	63
Mithril Supporter	58	64
Adamant Supporter	60	65
Rune Supporter	61	66
Dragon Supporter	62	67
Supreme Donator	63	68

Two consequences worth knowing:

Supreme Donator starts Fight Caves on wave 63, which is the Jad wave itself. The fire cape becomes a single fight.
Supreme Donator starts Inferno on wave 68, the triple Jad wave, then Zuk. Dragon Supporter starts on 67, the single Jad.

Even at no rank you skip the first 44 Fight Caves waves and the first 49 Inferno waves, so neither is the full-length grind they are elsewhere.

Practice mode

Fight Caves has a practice option that lets you enter any wave from 1 to 63 directly. Use it to rehearse the Jad wave without playing through everything before it.

This is the single best thing you can do before a real attempt. Jad is a prayer-switching fight and the only way to get comfortable with it is repetition.

TzTok-Jad

Jad attacks with magic and ranged, and each is telegraphed by a distinct animation before the hit lands. You switch your overhead prayer to match, every time.

At half health he spawns healers. If they reach him he heals back up, so pull them off and kill them before returning to Jad.

TzKal-Zuk

Zuk is the end of the Inferno. The fight uses a shield you move behind to block his attacks, and the shield's position dictates where you can stand for the entire fight.

Reaching Zuk means clearing both Jad waves first, including the triple Jad wave, which is where most attempts end.

What to bring

Ranged as your main style, with prayer switching as the core skill.
Prayer potions. Constant overhead switching is the largest drain in both caves.
Food and brews. There is no banking once you are inside.
Practice first. Use the Fight Caves practice mode before either attempt.

Related

The infernal cape and a Scythe of vitur combine into the Scythe of infernal at a guaranteed 100%. Two of each are needed. See the Upgrade Recipes guide.

Tzrek-jad and Tzrek-zuk are the pets. Tzrek-zuk carries the bank auto loot perk, which is one of the strongest pet perks in the game. See the Pets guide.