Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Human Soldier Artificer Elves you control have “{T}:

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

where X is Halana and Alena and Gisa and Geralf's power

Set: The Lord of the Rings: Tales of Middle-Earth Commander Type: Creature — Insect Rarity: Rare Cost: {4}{G}{G}{G} Flying

Take an extra turn after this one

Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Human Soldier Artificer Elves you control have “{T}:Set: 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.