Kin of Ravens

First strike
Buyback {1}{b} (You may pay an additional {1}{b} as you cast this spell. If the buyback cost was paid, put this spell into its owner's hand instead of
into that player's graveyard as it resolves.)
At the beginning of the end step of a turn Kin
of Ravens was returned to your hand, you may
pay {3}{b}{b}. If you do, return Kin of Ravens to
the battlefield and transform it.