The Dark Forest

{t}: Add one {g} to your mana pool
Centaurs and Spiders you control get +1/+1
"The Forest? I thought that was a joke! We can't go
in there! Students aren't allowed. And there are...
...Werewolves"
"Oh, there's more than werewolves in those trees lad.
You can be sure of that. Nighty night."