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 - $93.70
Lightly Played Foil - $84.30
Moderately Played Foil - $75.00
Heavily Played Foil - $65.60
Damaged Foil - $46.90
NM-Mint Foil Non English - $93.70
Lightly Played Foil Non English - $84.30
Moderately Played Foil Non English - $75.00
Heavily Played Foil Non English - $65.60
Damaged Foil Non English - $46.90