A smug little imp perches on an empty square of your back rank and fights as a bishop for 3 of your turns, then scampers back through the veil.
You draft Imp Familiar in Buff mode. Activated: you choose when to use it, and using it is your move for that turn.
As a pieces card, it summons, revives, promotes, or converts a piece.
“Mostly loyal and entirely smug.”