Overgrown Wastes enters the battlefield tapped unless you pay 2 life.
: Add or to your mana pool.
Sacrifice Overgrown Wastes: Add or to your mana pool.
: Overgrown Wastes becomes a 2/2 black Skeleton creature until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.
: Overgrown Wastes becomes a 2/2 black Skeleton creature until end of turn. It's still a land.
