Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Hour of Devastation Tokens Activate this ability only if

Activate this ability only if Ancient Hellkite is attacking

Hisata set wards to warn him of predators

Set: Urza's Saga Type: Enchantment — Aura Rarity: Uncommon Cost: {2}{W}{W} Enchant creature

The Onakke were masters of dark arts and artifice

Set: Invasion Type: Land Rarity: Uncommon Urborg Volcano enters the battlefield tapped

Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] Hour of Devastation Tokens Activate this ability only ifSet: 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.