Runaway Boulder 
Artifact
Appears in 292 of 52,011 decks (0.6%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Mischievous Chimera | 1 | None |
| Kemba, Kha Regent | 1 | None |
| Gorex, the Tombshell | 1 | None |
| Basalt Golem | 1 | None |
| Outcaster Greenblade | 1 | None |
| Treasure Mage | 2 | 0.99 |
| Tetravus | 2 | 0.99 |
| Xenic Poltergeist | 1 | 0.99 |
| Gorilla Titan | 1 | 0.99 |
| Rust Scarab | 1 | 0.99 |
| Reckless Detective | 1 | 0.99 |
| Pyrewild Shaman | 1 | 0.99 |
| It That Heralds the End | 1 | 0.99 |
| Treasure Keeper | 1 | 0.99 |
| Viseling | 1 | 0.99 |
| Vile Manifestation | 1 | 0.99 |
| Rebbec, Architect of Ascension + Siani, Eye of the Storm | 1 | 0.99 |
| Barricade Breaker | 1 | 0.99 |
| Renari, Merchant of Marvels + Far Traveler | 1 | 0.99 |
| Voltaic Construct | 1 | 0.99 |
| Leonin Relic-Warder | 1 | 0.99 |
| Ganax, Astral Hunter | 1 | 0.99 |
| Behemoth of Vault 0 | 1 | 0.99 |
| Brinelin, the Moon Kraken + Halana, Kessig Ranger | 1 | 0.99 |
| Numa, Joraga Chieftain + Ich-Tekik, Salvage Splicer | 1 | 0.99 |
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