Grouse, Fully Certified

Flying, Haste, Prowess
{x}{t}: Choose target instant or sorcery you control
or in your graveyard with converted mana cost X.
Roll a four-sided die until you roll a one. For
each time you rolled, copy that instant or sorcery
(you may choose new targets for the copies) and
take 1 damage.
Please, don't remind me.
—Niv Mizzet