Mister Fister

If Mister Fister destroys a creature with toughness 3 or less, all creatures opponents control with the same toughness as the creature that got destroyed are dealt 3 damage. If a creature would be put into the graveyard this way, exile it instead.
{1}{u}{g}: Target creature must block Mister Fister this turn if able.
"I will thrust my fist of judgment straight to the core of my enemy. Don't leave yourself open around me..."