Powder Keg [Magic Player Rewards 2004] Magic 2010 Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Creature — Ox Uncommon Cost: {3}{G} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

and I am nourished

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {4} {2}

If both targets are still legal as this ability resolves

Powder Keg [Magic Player Rewards 2004] Magic 2010 Set: Portal Three Kingdoms Type:Set: Magic Player Rewards 2004 Type: Artifact Rare Cost: {2} At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with converted mana cost equal to the number of fuse counters on Powder Keg.