Legendary Artifact Creature — Golem
Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn.
: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its converted mana cost until end of turn.
From the Vault: Relics (V10)
#6, Mythic Rare
Illustrated by: Mark Zug
Multiverse ID: 212632