Horizon Explorer 15 (Commander: Edge of Eternities)

Lands you control enter untapped. Whenever you attack a player, create a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")

NM - $4.60
LP - $3.70
MP - $2.80
HP - $1.90
DMG - $1.50