Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.
NM-Mint Foil - $95.30
Lightly Played Foil - $85.80
Moderately Played Foil - $76.20
Heavily Played Foil - $66.70
Damaged Foil - $47.70
NM-Mint Foil Non English - $95.30
Lightly Played Foil Non English - $85.80
Moderately Played Foil Non English - $76.20
Heavily Played Foil Non English - $66.70
Damaged Foil Non English - $47.70