(: Add or to your mana pool.)
Obsidian Woodlot enters the battlefield tapped unless you reveal a land card from your hand.
: Obsidian Woodlot becomes a 2/1 black and green Skeleton creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Obsidian Woodlot becomes a 2/1 black and green Skeleton creature until end of turn. It's still a land.
