Crazy Grud, Explosives Expert

Whenever Crazy Grud, Explosives Expert
attacks, flip three coins. If all three come up
heads, Crazy Grud deals X damage to defending player, where X is the number of attacking
creatures. If two come up heads, Crazy Grud
deals 3 damage to each player. If two come up
tails, Crazy Grud deals 2 damage to each
creature. If all three come up tails, Crazy Grud
deals X damage to you, where X is the number
of attacking creatures. Any damage dealt this way
can't be prevented.