(this card may be oversized, have a non-standard card back, or other unique characteristics
that make it illegal for playing in a sanctioned Magic event)
Legendary Artifact Creature — Golem
Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn.
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: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.