Warren Warleader

Whenever you attack, choose one — • Create a 1/1 white Rabbit creature token that's tapped and attacking. • Attacking creatures you control get +1/+1 until end of turn. (This token's mana cost is {2}{W}{W}.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oc0d088ajpb1hbkhroxs9.