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 - $6.70
NM-Mint Foil Non English - $6.70
Lightly Played Foil - $6.40
Lightly Played Foil Non English - $6.40
Moderately Played Foil - $6.00
Moderately Played Foil Non English - $6.00
Heavily Played Foil - $5.40
Heavily Played Foil Non English - $5.40
Damaged Foil - $4.40
Damaged Foil Non English - $4.40