Sylv, Elven Treehouse

{t}: Add {g}.
{t}, Sacrifice Sylv, Elven Treehouse: Create a 1/1 green Elf Warrior creature token for each Forest you control.
"Picture the greatest treehouse ever built! It will be as big as an oak! With many rooms and windows! We won't need torches for light and we'll be surrounded by our friends!"
-Musings of a child