Bloodfang of the Crimson Moon

Trample
{2}{r}: Bloodfang of the Crimson Moon gets
+4/+0. Whenever Bloodfang of the Crimson
Moon deals damage to an enemy player, it deals
double that damage.
At the beginning of each upkeep, if a player cast
two or more spells last turn, transform Bloodfang
of the Crimson Moon.