Powder Keg [Urza's Destiny] Kaladesh Set: Saviors of Kamigawa Type:

Set: Saviors of Kamigawa Type: Sorcery — Arcane Rarity: Rare Cost: {5}{B} Target opponent chooses a number

Set: Rise of the Eldrazi Type: Enchantment — Aura Rarity: Rare Cost: {2}{G}{G} Enchant creature

Set: Alpha Edition Type: Enchantment — Aura Rarity: Common Cost: {U}{U} Enchant land

At end of combat

these devices doubled the output of Amrit Vatyam's forges

Powder Keg [Urza's Destiny] Kaladesh Set: Saviors of Kamigawa Type:Set: Urza's Destiny Type: Artifact Rarity: 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 mana value equal to the number of fuse counters on Powder Keg.