Creeping Tar Pit
Creeping Tar Pit
Land
Creeping Tar Pit enters the battlefield tapped.

{T}: Add {U} or {B} to your mana pool.

{1}{U}{B}: Until end of turn, Creeping Tar Pit becomes a 3/2 blue and black Elemental creature and is unblockable. It's still a land.
Neuste Edition: [WWK] Worldwake ( R · #134 )