(: Add or to your mana pool.)
Obsidian-wood enters the battlefield tapped unless you control one or more Beasts.
: Obsidian-wood becomes a 2/1 black and green Rogue creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Obsidian-wood becomes a 2/1 black and green Rogue creature until end of turn. It's still a land.
