Renning, Grim Cavalier

When Renning, Grim Rider enters the
battlefield, Muster X where X is the amount
of black mana spent to cast this spell.
When a creature token enters the battlefield
under your control, put a +1/+1 counter on it.
"I am Bertram, of the Four Riders of Daein. Loyal
to his majesty King Ashnard." —Renning while brainwashed