Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] WTR141-C Could it be that the

Could it be that the trees of Fangorn were awake

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

Once per Turn Action -- (2 - Resource): Attack When Sekem Attack s

if you've played an attack action card and a 'non-attack' action card this turn

Blade Break (If you defend with New Horizon

Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] WTR141-C Could it be that theSet: 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.