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![Unwinding Clock (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]](https://cdn.shopify.com/s/files/1/0429/5858/6014/products/39615bbf38dcf47a4fc2f0e9ceb4c5c8_ed70ef10-0526-4061-83c7-1169775229ef.jpg?v=1709606263)
Unwinding Clock (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts]
| Set: | 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"