MTG Commander 2015 - Plunder the Graves

Plunder the Graves is a creature heavy black/green deck with an interesting creature regeneration mechanic. Its commander, Meren of Clan Nel Toth, grows increasingly more powerful as your creatures die. For each creature you lose, the player gains and experience point that sticks around whether Meren is dead or not. While she is in play, at the beginning of your end step, you can bring a creature from your graveyard to your hand. Better yet, if the converted mana cost of a creature is less than your experience points, you can bring it straight back into the battlefield!