Chubbz, the Omnipotent

When a player casts a spell, do the following. X is
that spell's converted mana cost:
-If the spell was a white spell, you gain X life.
-If the spell was a blue spell, you draw X cards.
-If the spell was a black spell, destroy any number of target creatures with total toughness less than X.
{dash}If the spell was a red spell, deal X damage to any target.
{dash}If the spell a green spell, up to X target creatures fight another target creature.