Voidstring, Abyssal Conduit

Whenever you compose, you may exile a creature
card from your graveyard and put a verse counter
on it. If you do, create a 1/1 black Spirit Horror creature token with flying.
{b}, {t}: Compose
{b}{b}{b}, Sacrifice three creatures: Put target
creature card exiled with a verse counter onto
the battlefield under your control.