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 converted mana cost until end of turn.
NM-Mint Foil - $117.80
Lightly Played Foil - $111.90
Moderately Played Foil - $106.00
Heavily Played Foil - $94.30
Damaged Foil - $76.60
NM-Mint Foil Non English - $117.80
Lightly Played Foil Non English - $111.90
Moderately Played Foil Non English - $106.00
Heavily Played Foil Non English - $94.30
Damaged Foil Non English - $76.60