Ava is a Keyblade Master who appears in Kingdom Hearts χ. She is a Foreteller and the leader of the Vulpes Union. She is also an apprentice of the Master of Masters and the founder of the Dandelions.
The Master of Masters assigns Ava her role.
When Luxu/Xigbar recalls the Foretellers after Master Xehanort's demise, Ava is not among them. Luxu explains Ava did not come because she fulfilled her role.
Like the other foretellers, Ava wields a stylized Keyblade.
Her fighting style primarily revolves around white magic and illusions, as seen when she is capable of healing people who have severe injuries, such as when Gula was nearly killed by Aced.
Ava's name was part of the Latin word Avarita, which means greed.