Restless Fortress 259 (Wilds of Eldraine)

This land enters tapped. {T}: Add {W} or {B}. {2}{W}{B}: This land becomes a 1/4 white and black Nightmare creature until end of turn. It's still a land. Whenever this land attacks, defending player loses 2 life and you gain 2 life.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50