Goblin Woods
Land-Mountain Forest (Rare)

(Tap: Add R or G to your mana pool.)

When Goblin Woods enters the battlefield, sacrifice it unless you pay G.

1, Tap: Target land becomes a 2/2 red Shaman creature until end of turn. It's still a land.

1GG, Tap: Put a +1/+1 counter on target creature.

Steve Guay