Ozius Æon

Ozius Aeon can't be countered.
When Ozius Aeon enters the battlefield, if it was
cast, you may skip your next turn. If you do, you
win the game on your next upkeep.
Ozius has first strike, deathouch flying,
indestructible and can can block up to eleven creatures if it was cast.
Patience is a virtue.