Hidden Horror 
Synergy is a rough depiction of how well and uniquely a card pairs with a commander. Read more on the About page.
| # | Card | Synergy |
|---|---|---|
| 1 | Shambling Attendants | 0.99 |
| 1 | Underworld Charger | 0.99 |
| 1 | Marshmist Titan | 0.99 |
| 1 | Hezrou // Demonic Stench | 0.99 |
| 1 | Brain Gorgers | 0.99 |
| 1 | Terrus Wurm | 0.99 |
| 1 | Tizerus Charger | 0.99 |
| 8 | Grixis Slavedriver | 0.98 |
| 8 | Gloom Sower | 0.98 |
| 8 | Rise Again | 0.98 |
| 8 | Seer's Lantern | 0.98 |
| 8 | Marut | 0.98 |
| 8 | Scrapwork Rager | 0.98 |
| 8 | Fractured Powerstone | 0.98 |
| 15 | Kitchen Imp | 0.97 |
| 15 | Hand of Emrakul | 0.97 |
| 15 | Gorgon Recluse | 0.97 |
| 15 | Hell Mongrel | 0.97 |
| 19 | Quicksand | 0.96 |
| 19 | Rotting Rats | 0.96 |
| 19 | Eldrazi Devastator | 0.96 |
| 19 | Grave Scrabbler | 0.96 |
| 19 | Lantern of Revealing | 0.96 |
| 19 | Writhing Necromass | 0.96 |
| 19 | Summon Undead | 0.96 |