Scoria Duke

Scoria Duke is a post-Moon Lord boss. He can be fought after Yharon has been defeated.

## Spawn

Scoria Duke can be summoned by fishing in the Sulphurous Sea with a Veil Worm. He can also randomly appear in the Sulphurous Sea after The Old Duke and Yharon have been defeated, when that happens the status message: "Boiling mist ascends from the poisonous waters" will appear.

## Behavior

Scoria Duke acts like The Old Duke but with some differences. Upon contact the player is inflicted with the, Boiling Blood, Burnt Skin and Feral Bite debuffs for 7 seconds. The Scoria Duke will produce steam clouds during the entire fight which inflict Burnt Skin on contact, if the player is inflicted with Burnt Skin or Burnt Skin II and they touch one of these clouds the debuff will get one tier higher.

During the fight an extreme heat will build up in the Scoria Duke, after 10 attacks he must cool himself down by emitting a steam explosion, after this explosion is Scoria Duke very vulnerable to attacks for 3 seconds.

All water tiles near the Scoria Duke will deal 40 damage per hit if the player comes in contact with them.

### Attacks

#### Phase 1

Unlike The Old Duke, Scoria Duke's attacks are not function on a set cycle, instead it will just use it's attacks randomly.

* Charges like The Old Duke, befor it charges it will spit a short Scoria Mist breath attack which inflict Burnt Skin.
* Spits invulnerable Steamy Tooth Balls which target the player for a short amount of time, before turning themselves vulnerable and stationary.
	+ While stationary the balls will emit damaging mist that floats upwards. Upon contact with the balls or the mist, the player is inflicted with the, Burnt Skin and Boiling Blood debuffs for 7 seconds.
* Fires 2 groups of 5 vulnerable Scoria Sharkrons, one group from the left and the other from right.
* Scoria Sharkrons inflict, Feral Bite and Burnt Skin debuffs for 6 seconds.
* The Scoria Sharkrons explode into 2 damaging Scorching Gore chunks when killed or upon tile contact. Scorching Gores inflict Burnt Skin for 5 seconds.

#### Phase 2

Transitions at 50% / **70%** / **100%** health, becoming briefly invulnerable and firing 10 Scoria Sharkrons upward as it does so. Its charges and movement speed are faster.

* At the beginning of phase 2 Scoria Duke will fly in an Infinity sign, this attack creates a massive Scoria Mist Vortex which draws the player into and around it.
* The Vortex will last for the rest of the fight.
* Some time Mist Balls will be fired from the Vortex.
	+ Mist Balls inflict Burnt Skin for 5 seconds on contact.
* Breath attacks cover a wider area, the time it uses to do this attack is shorter.
* Summons 3 groups of Scoria Sharkrons, two from above and one from below. While doing this attack Scoria Duke will vomit a large amount of Mist Balls which inflict Burnt Skin.

#### Phase 3

Transitions at 20% / **35%** / **50%** health. The Old Duke will become more translucent and cloaked in a mist veil, temporarily gaining invincibility for its first three attacks. After it teleports the first time, it becomes vulnerable again. Heat buildup is increased in this phase, that means it is doing it's steam explosion more often (After 7 attacks instead of 10), the faster buildup allows Scoria Duke to do one or two supercharges before he emits steam.

It gains the ability to teleport to a location nearby the player before it starts a charge. The teleports do not count towards the Scoria Duke's heat buildup.

* Gains a second breath attack that inflicts instant Burnt Skin II.
* Gains the ability to change the direction mid charge.
* Can now dive in the water below it to create a tsunami.
* The Scoria Mist Vortex now fires Scoria Sharkrons.

### In Expert Mode

* Charges are faster, breath attacks are wider.
* Cooldown phase steam explosions are bigger.

### In Revengeance Mode

* The Scoria Mist Vortex is bigger.
* Phase 1 Scoria Sharkron attacks use the phase 2 pattern.
* Burnt Skin is replaced by Burnt Skin II.

### In Death Mode

* Immediately enters Phase 2 when spawned.
* Charges are even faster in velocity.
* Scoria Dukes movement speed is greatly increased.

## Summons

Scoria Sharkron

Steamy Tooth Ball

## Trivia

* The theme heard during this fight is Boiling Veil, it is supposed to be a remix of Toxic Wisdom. (The theme doesnt exist rn but its the concept)
* Phase 3 is in the original Old Duke fight only available in Expert Mode or higher difficulties.
* In fact is this boss just The Old Duke who inhaled mist from the Scoria Ore.
* The Calamities Vanities mod made a Pet based on this concept.

## Lore

Even mutated abominations tend to be too curious, so did it happen that the Old Duke found the entrance to the deep and dark abyss, he was curious in what hides down there so he entered the opening and descended, further and further until he reached the abyssal islands. The islands undersides was covered in a weird scorching material, interested in the newly discovered object he took a deep breath to inhale some of the fumes, it felt good, maybe too good. The fumes were kinda addicting and so he inhaled more and more of it, burning his entire body until he himself turned into a scorching creature. The burned duke now waits in the upper layer of the abyss to rise once more and biol the Sulporous Sea. Note: Dont do Scoria Kids.