(: Add or to your mana pool.)
Dragonskull Chamber enters the battlefield tapped.
: Dragonskull Chamber becomes a 2/1 black and blue Rat creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Dragonskull Chamber becomes a 2/1 black and blue Rat creature until end of turn. It's still a land.
