KMS Odin

Defender

Prevent all damage that would be dealt to and dealt by
KMS Odin.

Whenever damage is dealt to any creature you control or to you, prevent it and deal that damage to KMS Odin instead.
Every time KMS Odin prevents damage, put 1 exhaustion counter on it. When KMS Odin has 9 or more exhaustion counters on it, deal 20 damage to all creatures you control and sacrifice KMS Odin.