Eulea, Spiritual Worlds Keeper

Hexproof And Proteccion From White

Soulseal Accord — Whenever a Spirit, Elemental, or Illusion enters the battlefield under your control, exile target permanent an opponent controls until that creature leaves the battlefield. If Eulea would leave the battlefield, you may sacrifice another creature instead. If you do, Eulea phases out.

At the beginning of your upkeep, return a card exiled with Eulea to its owner's hand. Then draw a card.

"Their souls are hers."