(: Add or to your mana pool.)
Whenever Pinecrest Forge becomes tapped, it deals 1 damage to you.
: Pinecrest Forge becomes a 2/1 green and white Snake creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Pinecrest Forge becomes a 2/1 green and white Snake creature until end of turn. It's still a land.
