River Serpent 
Creature — Serpent
Appears in 105 of 16,257 decks (0.6%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Cephalid Broker | 1 | 0.99 |
| Giant Oyster | 1 | 0.99 |
| Viconia, Drow Apostate + Sword Coast Sailor | 1 | 0.99 |
| Dromar's Attendant | 1 | 0.99 |
| Dreamscape Artist | 1 | 0.49 |
| Brinelin, the Moon Kraken + Malcolm, Keen-Eyed Navigator | 1 | 0.49 |
| Evidence Examiner | 1 | 0.49 |
| Mischievous Catgeist // Catlike Curiosity | 1 | 0.33 |
| Ghost of Ramirez DePietro + Falthis, Shadowcat Familiar | 1 | 0.33 |
| Monstrous War-Leech | 1 | 0.19 |
| Alora, Merry Thief + Feywild Visitor | 1 | 0.16 |
| Thunderous Snapper | 1 | 0.14 |
| Nucklavee | 1 | 0.14 |
| Kathari Remnant | 1 | 0.12 |
| Azorius Guildmage | 1 | 0.09 |
| Omen Hawker | 1 | 0.07 |
| Maverick Thopterist | 1 | 0.04 |
| Worldheart Phoenix | 1 | 0.04 |
| Horrid Shadowspinner | 1 | 0.04 |
| Brinelin, the Moon Kraken + Gilanra, Caller of Wirewood | 1 | 0.02 |
| Callaphe, Beloved of the Sea | 1 | 0.02 |
| Sedraxis Specter | 1 | 0.01 |
| Malcolm, Keen-Eyed Navigator + Breeches, Brazen Plunderer | 1 | 0.0 |
| Tatyova, Benthic Druid | 1 | 0.0 |
| Sultai Soothsayer | 1 | 0.0 |
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