Vay'Hek, Hidden Doctor

Prowl {1}{b} (You may cast this for its prowl cost
if you dealt combat damage to a player this turn with an Elf or a Rogue.)
Target player loses 3 life and you gain 3 life.
If Vay'Hek, Hidden Doctor prowl cost was paid, return target creature from your graveyard to your hand.
"Oh Gods I have a sister"
— Vay'hek to Ryley