Merrow Harbinger 
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 | Harbor Serpent | 1.0 |
| 1 | Merfolk Observer | 1.0 |
| 1 | Streambed Aquitects | 1.0 |
| 1 | Dream Thrush | 1.0 |
| 1 | Phantasmal Terrain | 1.0 |
| 1 | Convincing Mirage | 1.0 |
| 1 | Sea's Claim | 1.0 |
| 1 | Inkfathom Divers | 1.0 |
| 1 | Rootwater Commando | 1.0 |
| 1 | Umara Entangler | 1.0 |
| 1 | Aquitect's Will | 1.0 |
| 1 | Rootwater Mystic | 1.0 |
| 1 | Merfolk Spy | 1.0 |
| 1 | Arctic Merfolk | 1.0 |
| 1 | Tideshaper Mystic | 1.0 |
| 1 | Deeptread Merrow | 1.0 |
| 1 | Aura Finesse | 1.0 |
| 1 | Reef Shaman | 1.0 |
| 1 | Tidal Warrior | 1.0 |
| 1 | Bonds of Quicksilver | 1.0 |
| 1 | Coral Merfolk | 1.0 |
| 1 | Coral Commando | 1.0 |
| 1 | Inertia Bubble | 1.0 |
| 24 | Vodalian Arcanist | 0.99 |
| 24 | Void Snare | 0.99 |