Ben 10, universe hero

When entres The Battlefield, create The Ominitrix, a Legendary Equipment token with "equip {4}.
This creature can be mutated as its not a human.
{g/w}{g/u}{b/g}{r/g}{t}: Search your library or grave for a non-human creature put in hand." Attached to me.
Creature spell you cast has mutate equal
to The mana cost.
Mutate cost you pay cost {1} less for each time you
cast your Commander from The command zone.