Grave Tower enters the battlefield tapped.
, : Add , or to your mana pool. Grave Tower deals 1 damage to you.
: Grave Tower becomes a 2/1 black and white Rat creature until end of turn. It's still a land.
, 
: Add 
, 
or to your mana pool. Grave Tower deals 1 damage to you.: Grave Tower becomes a 2/1 black and white Rat creature until end of turn. It's still a land.
