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 - $10.70
NM-Mint Foil Non English - $10.70
Lightly Played Foil - $10.20
Lightly Played Foil Non English - $10.20
Moderately Played Foil - $9.60
Moderately Played Foil Non English - $9.60
Heavily Played Foil - $8.60
Heavily Played Foil Non English - $8.60
Damaged Foil - $7.00
Damaged Foil Non English - $7.00