Extreme Mutations

Enchant target nonwhite creature
Target creature gets +{x}/+{x}. To find {x} roll
your life counter die. If target creature's
converted mana cost is lower than what you
rolled, then {x} is 5. If the converted mana cost
is higher than what you rolled, then {x} is -3.
"Result 376: Mass destruction.
Result 377: Small outbreak of sickness
Result 378: Mass panic."
-Sara Jake's Reserch Notes