Elana, the Squalid Queen

Elana, the Squalid Queen is a boss in Dark Souls II. She appears in the Crown of the Sunken King DLC.

Location
At the final floor of the Dragon Sanctum.

Summoning
Steelheart Ellie and Benhart of Jugo can be summoned for this battle. Ellie's summon sign is just before the fog gate, but Benhart's is further back, behind some large pillars.

Lore
Elana, the Squalid Queen, like Nashandra, was a fragment of Manus, Father of the Abyss, supposedly a fragment representing the trait of wrath. Regaining her form, she became Elana, and later wife of the Sunken King. It is unknown if she designed to betray the Sunken King or if she truly loved him, but one day Sir Yorgh and his Drakeblood Knights besieged Shulva, killing the Sunken King and awakening Sinh, the Slumbering Dragon, who then let forth a toxic cloud that annihilated the whole city.

Somehow, Elana survived the siege, and became furious and vengeful for her city's destruction and possibly her husband's death. She took on her true form, and now accompanies Sinh, accruing souls for the day of her vengeance.

Strategy

 * Elana will cast Affinity, Chaos Storm, Dark Hail, Dark Orb, Darkstorm, and Flame Swathe.
 * When close, she will attack the player with the Wrathful Axe.

Trivia

 * It's possible that the Velstadt character she summons is in fact a mimicry of Raime instead. This theory is easily discarded however when one consider's the ONE piece of gear we have to link Raime to a figure, his Greatshield, is not present on this Velstadt character. It's also safe to note that the armor Velstadt wears is designated as "Velstadt's ______", meaning it's likely unique to him.
 * Her greeting dialogue doesn't seem to be directed at the player, but at her fallen city, saying that it was not "deserving of the mire," and "forever [it] shall rot."