Barbamon, Greed's Reach

+2: Each opponent discards a card. If a land card is discarded this way, add one mana of any color to your mana pool.
-2: Reveal the top three cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.
-7: You get an emblem with "You may play cards from your opponents' graveyards. If a card would be put into an opponent's graveyard exile it"