Chaos Witch Quelaag

Chaos Witch Quelaag is a boss in Dark Souls. She is a daughter of the Witch of Izalith, and along with most of her family failed to escape and was corrupted by the chaotic flame. Quelaag and her sister became spider-like creatures with their original torsos extending from the monsters' backs.

Location
Found in Quelaag's Domain in between Blighttown and Demon Ruins.

Triple Fury Slash
Quelaag will charge up briefly and swing her sword from bottom-left to top-right (from her perspective). Roll to the left (player's perspective) to dodge this attack easily.

Chaos Stab
Quelaag will charge up for a longer time and stab with the sword, holding it out for a short duration. This attack homes in much more reliably than the slash and deals multiple hits.

Lava Surge
Quelaag can create lava pools in three ways:
 * She may briefly fire globules that form small lava pools;
 * From a range, she may leap abruptly towards the player, firing lava;
 * She may stop to generate large amounts of lava in front of her over an extended duration, during which she is completely vulnerable to attacks. She will most likely follow up with Fire Burst afterwards.

Leg Stomp
Quelaag will lift her front legs and begin trampling in place. This attack has a very long startup and is easily dodged.

Fire Burst
Quelaag hugs her spider body and, after a roar, performs a deadly explosion. Quelaag will often counterattacks from behind using this.

Lava Spew
Quelaag will emit fire from her hiney.

Removed Content
Quelaag had dialogue removed from the final game:
 * Go back. Forbidden be, these parts. The realm of the creatures of chaos. They accept their banished fate. Go back. Lest the flames devour all, and the children of chaos feed upon your charred ashes. Those who defy the pact... Those who trespass Quelaag's domain... May you feel the depth of our wrath! Ahh, a precious new sacrifice! Forbidden be, these parts. The realm of the creatures of chaos. Go on, go on ahead... Welcome, bringer of meat. The children of chaos are hungry; give yourself to Quelaag's flame!
 * This indicates that Quelaag had a matriarchal status within the Chaos Servant Covenant, along with or instead of her sister.

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