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.
Near Mint - $14.25
Near Mint Non-English - $14.25
Lightly Played - $13.50
Lightly Played Non-English - $13.50
Moderately Played - $11.50
Moderately Played Non-English - $11.50
Heavily Played - $8.50
Heavily Played Non-English - $8.50
Damaged - $7.25
Damaged Non-English - $7.25