Chandra, Flame Emissary

: Legendary Land Planeswalker - Chandra (Chandra isn't a spell, it's affected by summoning sickness, and it has "{t}: add {r}"
+1: Look at the top card of your library. If it's a mountain or land that adds red mana, put it onto the battlefield tapped.
-4: You get an emblem with: Whenever a land enters the battlefield under your control, Chandra, Flame Emissary deals 1 damage to any target.