Horrid SpikeBack

Trample, Lifesteal, Haste, Menace, Blood Lust
If you control 3 or more {b},{u},{g} then horrid SpikeBack Gains Enrage and Deathtouch
{b}{3}: UltiMutate (When you pay the Mana Cost, sacrifice a token creature token, then Horrid SpikeBack Gains +3/+4)