Karn, Legacy Reforged (Extended Art) [March of the Machine: The Aftermath] Lightning[x2] " "[AUTO] At the beginning

" "[AUTO] At the beginning of your climax phase

Elves you control have “{T}: Add {G}{G}

Set: Neo Destiny Unlimited Type: Fire Rarity: Secret Rare Retreat cost: Colorless

Set: Outlaws of Thunder Junction: The Big Score Type: Artifact Rarity: Mythic Cost: {2}{G} Whenever you cast a spell that's one or more colors

and it is included as a stunning oversized card

Karn, Legacy Reforged (Extended Art) [March of the Machine: The Aftermath] Lightning[x2] " "[AUTO] At the beginningSet: March of the Machine: The Aftermath Type: Legendary Artifact Creature Golem Rarity: Mythic Cost: {5} Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add C for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.