Carta, The Shapeless One

Hexproof, Changeling
As long as you control less then three creatures that share a creature type Carta isn't a creature.
{2}{g}: Search your library for a creature that shares a creature type with a creature you control, reveal it and put it on top of your library.
{b/g}{g/u}{g/w}{r/g}: Creature you control gain trample and get +1/+1 for each other creature you control that shares a creature with it until end of turn.