Shambling Vent

Shambling Vent enters the battlefield tapped.{T}: Add {W} or {B} to your mana pool.{1}{W}{B}: Shambling Vent becomes a 2/3 white and black Elemental creature with lifelink until end of turn. It's still a land.

This land enters tapped.
{T}: Add {W} or {B}.
{1}{W}{B}: Until end of turn, this land becomes a 2/3 white and black Elemental creature with lifelink. It's still a land.

Edge of Eternities: Stellar Sights

Pioneer Masters

Commander Legends: Battle for Baldur's Gate

Shambling Vent enters the battlefield tapped.
{T}: Add {W} or {B}.
{1}{W}{B}: Shambling Vent becomes a 2/3 white and black Elemental creature with lifelink until end of turn. It's still a land.