True-Name Nemesis [Commander 2013] Rivals of Ixalan and you may play lands

and you may play lands and cast creature and enchantment spells from the top of your library

Whenever Kroxa enters the battlefield or attacks

Final Strike deals damage to target opponent or planeswalker equal to the sacrificed creature's power

Set: Darksteel Type: Artifact — Equipment Rarity: Rare Cost: {3} Equipped creature gets +2/+2 and has protection from white and from black

Rules Text Contains: The "Superabundance" deck gives you more than you ask for

True-Name Nemesis [Commander 2013] Rivals of Ixalan and you may play landsSet: Commander 2013 Type: Creature Merfolk Rogue Rarity: Rare Cost: {1}{U}{U} As True Name Nemesis enters the battlefield, choose a player. True Name Nemesis has protection from the chosen player. (This creature can't be blocked, targeted, dealt damage, or enchanted by anything controlled by that player.)