Legacy Weapon [Apocalypse] Judge Gift Cards 2016 whenever either of those creatures

whenever either of those creatures deals combat damage

The first line of defense against Urza and Mishra

you may sacrifice an artifact

you may gain life equal to its power

Set: Modern Masters 2015 Type: Instant Rarity: Mythic Cost: {X}{R}{R} Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell

Legacy Weapon [Apocalypse] Judge Gift Cards 2016 whenever either of those creaturesSet: Apocalypse Type: Legendary Artifact Rarity: Rare Cost: {7} {W}{U}{B}{R}{G}: Exile target permanent. If Legacy Weapon would be put into a graveyard from anywhere, reveal Legacy Weapon and shuffle it into its owner's library instead.