Aschenafevi, Eternity Drake

Cumulative upkeep {p/c}
At the beginning of each players upkeep, before cumulative upkeep triggers,
that player gains control of Aschenafevi.
Shroud, Indestructable
Aschenafevi cannot be exiled, returned from the battlefield to another zone, or sacrificed except by
its own ability.
When Aschenafevi leaves the battlefield, it's controller loses the game.