Inferno Demonlord

"Even demons fear this incarnation of pure evil, constantly feeding on it's burning desire for destruction."

Inferno Demonlord is a Slayer Boss in the Blaze Slayer branch. It requires Voidgloom Seraph completion to start the  Boss.

The Demonlord splits into demons at 50% HP (1,250,000), named Quazii and Typhoeus (a Wither Skeleton and a Pigman respectively).

Upon spawning, only Quazii can be damaged. Typhoeus will be immune. Quazii will behave more aggressively, whereas Typhoeus, while immune, will be repelled by the player when within 5 blocks of them. When Quazii is defeated, Typhoeus will adopt more aggressive behavior and can be attacked. When Typhoeus is defeated, the Demonlord will reform and resume attacking.

The Demonlord splits into its demons once at 50% HP (5,000,000).

A shield protects the Demonlord, which can be attuned to, , , or. Only direct strikes from Blaze Slayer Daggers (Twilight Dagger, Firedust Dagger, Kindlebane Dagger, Mawdredge Dagger, Pyrochaos Dagger, Deathripper Dagger) attuned identically, as well as enchantment damage from those strikes, will deal full damage to the boss. Every 8 strikes with the correct attunement, the shield will change its attunement, in the aforementioned order. All other attacks, including ranged attacks, magic attacks, all strikes, and melee attacks from anything else will have their damage reduced by 99%.

Each demon behaves as before, but now have shields, which also change every 8 hits. Quazii will alternate between and, while Typhoeus alternates between  and. When a shield switches, the immunity between Quazii and Typhoeus also switches.

Beginning at 50% HP, every seconds, the boss will prepare a fireball above its head for 3.5 seconds. Then, it will throw it in a random direction, where a 4-block high orange pillar will form. Such pillars must be destroyed within 7 seconds of being placed, by clicking them 8 times while having any Wisp Pet active. The pillar has no invincibility frames. The pillar gets 1 block shorter every two times it is hit until at 8 hits, it is no longer present. If it is not destroyed, all players fighting the Demonlord will take 1000 times their health as. This can be blocked by using the Wither Cloak Sword ability, Creeper Veil.

The Demonlord splits into its demons twice, at 2/3 HP and 1/3 HP.

Quazii gains a beam which spins slowly and is centered on Quazii's hitbox. If the player touches the beam, they will take 70% of their in, and Quazii will heal 20% of its health (1,000,000 hp at , and 2,000,000 hp at ).

Fire pillars begin at 2/3 HP (30,000,000).

Beginning at 1/3 HP (15,000,000), the boss will spawn up to 5 fire pits near the player regularly. Orange terracotta blocks will form in small cross shapes near the player, which turn to fire after 1.5 seconds. The fire deals 200% as  per second. Note that fire pits spawn immediately before the demons spawn as well as immediately after.

The Demonlord functions identically to previous tiers. It splits into its demons twice, at 2/3 HP (100,000,000) and 1/3 HP (50,000,000).

Typhoeus gains a trail of fire following it. The fire deals 60% of the player's as  if contact is made.

Fire pillars begin spawning at 2/3 HP. Fire pits begin spawning at 1/3 HP.