When Grave Mesa enters the battlefield, sacrifice it unless you pay .
, : Add to your mana pool.
: Grave Mesa becomes a 1/1 black and red Zombie creature with first strike until end of turn. It's still a land.
., 
: Add 
to your mana pool., : Add to your mana pool.
: Grave Mesa becomes a 1/1 black and red Zombie creature with first strike until end of turn. It's still a land.
