Karn, Legacy Reforged - [Foil, Extended Art] March of the Machine: The Aftermath (MAT) 2XM Knowledge fills the mind of

Knowledge fills the mind of a fool and opens the mind of the sage

for they may yet rise up and beat you senseless

the Skyshark and you gain 1 life

Whenever Hydra Omnivore deals combat damage to an opponent

(Draw X cards

Karn, Legacy Reforged - [Foil, Extended Art] March of the Machine: The Aftermath (MAT) 2XM Knowledge fills the mind ofKarn, 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.