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.
NM-Mint - $4.90
Lightly Played - $4.70
Moderately Played - $4.40
Heavily Played - $3.90
Damaged - $3.20
NM-Mint Non English - $4.90
Lightly Played Non English - $4.70
Moderately Played Non English - $4.40
Heavily Played Non English - $3.90
Damaged Non English - $3.20
Foil Prices
NM-Mint Foil - $5.40
Lightly Played Foil - $5.20
Moderately Played Foil - $4.90
Heavily Played Foil - $4.30
Damaged Foil - $3.50
NM-Mint Foil Non English - $5.40
Lightly Played Foil Non English - $5.20
Moderately Played Foil Non English - $4.90
Heavily Played Foil Non English - $4.30
Damaged Foil Non English - $3.50