Glass Cannon

{2}{r}, Sacrifice Glass Cannon: Glass Cannon deals
4 damage to any target. If a player was dealt
damage, Glass cannon deals 1 damage to each
creature and planeswalker under that players
control. If a creature or planeswalker was dealt
damage, Glass cannon deals 1 damage to that
creature or planeswalker's controller, and 1
damage to each other creature and planeswalker
that player controls.