Asher Mir, Eater of Worlds

Flying, indestructible
When Asher Mir, Eater of Worlds enters the battlefield, you may sacrifice a land. If you do, each other player sacrifices a land. You may then repeat this process. You gain Treasure tokens equal to the number of lands sacrificed this way.
Asher Mir, Eater of Worlds' power and toughness are equal to the number of Treasure tokens you control.