Karn, Legacy Reforged (Extended Art) [March of the Machine: The Aftermath] Artifact Whenever you cast a spell

Whenever you cast a spell of the chosen type

Set: Foreign Black Border Type: Artifact Rarity: Uncommon Cost: {3} Basalt Monolith doesn't untap during your untap step

The Invasion Tree broke through the Blind Eternities and sent Phyrexian perfection coursing across the Multiverse

Set: POP Series 8 Type: Supporter Rarity: Uncommon

Set: Arabian Nights Type: Creature — Bird Egg Rarity: Common Cost: {3}{R} When Rukh Egg dies

Karn, Legacy Reforged (Extended Art) [March of the Machine: The Aftermath] Artifact Whenever you cast a spellSet: 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.