Blast Bomb Juggler

{t}: Blast Bomb Juggler deals 4 damage to target creature. Then, put a malfunction counter on
Blast Bomb Juggler.
Whenever you tap Blast Bomb Juggler for
its activated ability, if it has a malfunction
counter on it, flip a coin for each malfunction
counter on Blast Bomb Juggler. If you lose a
flip, sacrifice Blast Bomb Juggler.