Cahbor Blazegorger

+2: You may exile a land from your hand. If you do, Cahbor Blazegorger deals 3 damage to target creature or player.
0: Until your next turn, whenever an opponent taps a land for mana, if it's not that player's turn, exile that land.
-9: You get an emblem with "Whenever a land enters the battlefield under your control, it deals 3 damage to target creature or player."