The Holy Grail

When you play The Holy Grail, you become the monarch.
During the end phase of the monarch's turn, the
monarch gets "The Holy Grail Emblem", and,
if the player has the "The Holy Grail Emblem"
put quest counters onto the emblem equal to
the total power of non-token creatures that player
controls.
If the monarch has at least 89 quest
counters on their "The Holy Grail
Emblem", that player cannot lose the game.