Unwinding Clock (Retro Schematic) [The Brothers' War Retro Artifacts] Basic Metal Energy Set: Commander Masters Type: Artifact

Set: Commander Masters Type: Artifact Rarity: Mythic Cost: {0} {T}

Set: EX: Crystal Guardians Type: Fighting Rarity: Rare Retreat cost: Colorless

Looks more like a shawl of branches to me

Set: Gym Heroes Unlimited Type: Item Rarity: Holo Rare

Unwinding Clock (Retro Schematic) [The Brothers' War Retro Artifacts] Basic Metal Energy Set: Commander Masters Type: ArtifactSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {4} Untap all artifacts you control during each other player's untap step. "Heat from the rotating mechanism is captured and converted into energy, allowing it to operate in perpetuity." *Rusko's Compendium of Clockwork"