Cauldron Familiar 
Synergy is a rough depiction of how well and uniquely a card pairs with a commander. Read more on the About page.
| # | Card | Synergy |
|---|---|---|
| 150 | Persistent Specimen | 0.07 |
| 150 | Cadaver Imp | 0.07 |
| 153 | Epicure of Blood | 0.06 |
| 153 | Mirkwood Bats | 0.06 |
| 153 | Blood Pact | 0.06 |
| 156 | Mortuary Mire | 0.05 |
| 157 | The Dross Pits | 0.04 |
| 158 | Dimir House Guard | 0.03 |
| 158 | Ornithopter of Paradise | 0.03 |
| 160 | Read the Bones | 0.01 |
| 161 | Barren Moor | — |
| 162 | Fellwar Stone | -0.01 |
| 163 | Sign in Blood | -0.03 |
| 164 | Opal Palace | -0.04 |
| 165 | Arcane Signet | -0.05 |
| 166 | Charcoal Diamond | -0.06 |
| 167 | Snuff Out | -0.07 |
| 167 | Go for the Throat | -0.07 |
| 169 | Syphon Mind | -0.1 |
| 170 | Commander's Sphere | -0.14 |
| 171 | Feed the Swarm | -0.25 |