Efficient Construction [Commander Masters] War of the Spark Set: Unsanctioned Type: Enchantment Rarity:

Set: Unsanctioned Type: Enchantment Rarity: Rare Cost: {2}{W} "Until end of turn" and "this turn" effects don't end

Set: Shards of Alara Type: Creature — Angel Rarity: Rare Cost: {1}{G}{W}{U} Flying

Set: Nemesis Type: Enchantment Rarity: Common Cost: {1}{W} Sacrifice Seal of Cleansing: Destroy target artifact or enchantment

where X is Nissa

Efficient Construction [Commander Masters] War of the Spark Set: Unsanctioned Type: Enchantment Rarity:Set: Commander Masters Type: Enchantment Rarity: Uncommon Cost: {3}{U} Whenever you cast an artifact spell, create a 1 1 colorless Thopter artifact creature token with flying. For some of Ghirapur's aerowrights, building thopters is a by product of larger construction efforts.