The Ritual of Ascension

At the beginning of your upkeep sacrifice a
creature. If you do, put a Ritual counter on
The Ritual of Ascension.
Remove a Ritual Counter from The Ritual of Ascension: You gain 2 life and draw a card.
(Melds with Xanathor, Arcane Master)

As the skies turned blood red the people of Ever-Light
knew one thing: Xanathor had won.