Terra, Empress of Nature

Beasts, Plants, Birds, Elementals and Dryads get +1/+1.
{b}{b}{t}: Create a 1/1 Bird with Deathtouch.
{g}{g}{t}: Create a 1/1 Plant Beast with Trample.
{g}{b}{t}: Create a 2/2 Elemental with Lifelink.