- Quelaag's Sister gives the player Chaos Storm if rank 2 for the Chaos Servant covenant is reached. Only one copy of Chaos Storm can be obtained, regardless of number of playthroughs.
Chaos Storm requires two attunement slots to use. It is very similar to Firestorm, having twenty "casts" (but using 17 per full cast), dealing slightly stronger initial damage and then leaving pools of lava where the pillars of fire struck at 33% the initial damage. In terms of initial damage tested on the Hollow Soldiers outside the Undead Parish, Firestorm did the weakest initial damage, then Chaos Storm, followed by Fire Tempest hitting at the strongest. However, if the enemy lingers to take the lava damage the total damage will outstrip Fire Tempest thus making this the highest damage potential Storm spell. This makes it an extremely viable spell for large, slow moving enemies.
Chaos Storm is useful as firestorm when it comes to knockback, dealing damage, and granting players breathing space. In addition, it is also useful for temporary area denial by creating lava around the caster. Like Firestorm it can prove useful against large enemies and bosses such as Seath the Scaleless as more than one pillar can hit the enemy. Indeed, with an Ascended Pyromancy Flame +5 and the Bellowing Dragoncrest Ring this spell decimates Seath's health if cast right in front of him when he's stunned, roughly taking away 85-90% of his health after the lava damage on NG.
|Acid Surge • Black Flame • Chaos Fire Whip • Chaos Storm • Combustion • Fire Orb • Fire Surge • Fire Tempest • Fire Whip • Fireball • Firestorm • Flash Sweat • Great Chaos Fireball • Great Combustion • Great Fireball • Iron Flesh • Poison Mist • Power Within • Toxic Mist • Undead Rapport|