Terberis, Deepwood Ravager

Trample, Protection from White
Basic Forestmorph {1}{g}{g} (You may cast this card
face down as a basic forest for {3} you may pay its Forestmorph cost to turn it face up)
Whenever you cast Terberis, Deepwood Ravager
for its Forestmorph cost, elementals you control
get +3/+3, trample, and haste until end of turn