David the Creator

{b}: Create a 0/1 black Worm creature token with deathtouch.
{u}{u}{b}{b}: Create a 3/3 black Xenomorph
creature token.
{x}: Create an X/X black Abomination creature
token, if the token has power and toughness 4 or greater, it gains trample.
"The perfect organism" - Ash