Pyro Jack

Jack Agilao- When this creature enters put a
-1/-1 counter on a target creature an opponent controls. If that creature has power less than or equal to Pyro Jack's power deal damage to your opponent equal to it's power.

"Also known as the Jack-o'-Lantern. He is known around the world by names such as Will o'the Wisp and Hitodama. He appears at night to startle travelers and make them lose their way."