(: Add or to your mana pool.)
When Level Grave enters the battlefield, sacrifice it unless you pay 3 life.
: Level Grave becomes a 2/1 white and black Angel creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Level Grave becomes a 2/1 white and black Angel creature until end of turn. It's still a land.
