Subaru, Returned By Death

As long as there is another creature on the battlefield under your control, Subaru has indestructible.Whenever a creature you control
would be put into a graveyard you may sacrifice
Subaru. If you do return that creature onto the battlefield under your control.
If Subaru is in your graveyard, you may pay {b}{b}. If you do, return Subaru from your
graveyard to your hand.