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 - $10.70
Lightly Played - $10.20
Moderately Played - $9.60
Heavily Played - $8.60
Damaged - $7.00
NM-Mint Non English - $10.70
Lightly Played Non English - $10.20
Moderately Played Non English - $9.60
Heavily Played Non English - $8.60
Damaged Non English - $7.00
Foil Prices
NM-Mint Foil - $12.40
Lightly Played Foil - $11.80
Moderately Played Foil - $11.20
Heavily Played Foil - $9.90
Damaged Foil - $8.10
NM-Mint Foil Non English - $12.40
Lightly Played Foil Non English - $11.80
Moderately Played Foil Non English - $11.20
Heavily Played Foil Non English - $9.90
Damaged Foil Non English - $8.10