Phelba the Clumsy

{u}{b}{r}, {t}: Choose another creature at random.
Roll a six-sided die. Put X -1/-1 counters on the
chosen creature, where X is the result. If X is
equal to that creature's toughness, its controller
creates a 4/4 black Demon creature token with
flying. If X is 1, you may draw a card.
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"She did it again."
"How bad is it?"
"Bad enough that you don't want to see."