River Boa 
Creature — Snake
Appears in 62 of 22,691 decks (0.3%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Dúnedain Rangers | 2 | 1.0 |
| Patagia Viper | 1 | 1.0 |
| Boneyard Lurker | 1 | 0.5 |
| Jungle Troll | 1 | 0.5 |
| Joraga Auxiliary | 1 | 0.5 |
| Stalker Hag | 1 | 0.5 |
| Cytoplast Root-Kin | 1 | 0.33 |
| Sachi, Daughter of Seshiro | 5 | 0.2 |
| Jhessian Infiltrator | 1 | 0.2 |
| Weaver of Currents | 1 | 0.2 |
| Wilson, Refined Grizzly | 1 | 0.2 |
| Keeper of Fables | 2 | 0.14 |
| Ragnar | 1 | 0.14 |
| Thornscape Battlemage | 1 | 0.14 |
| Drumhunter | 1 | 0.12 |
| Sosuke, Son of Seshiro | 1 | 0.12 |
| Killer Bees | 1 | 0.12 |
| Wilson, Refined Grizzly + Feywild Visitor | 1 | 0.11 |
| Woolly Thoctar | 3 | 0.09 |
| Amber Gristle O'Maul + Cloakwood Hermit | 1 | 0.09 |
| Parcelbeast | 2 | 0.05 |
| Drove of Elves | 1 | 0.03 |
| Bloodbraid Elf | 1 | 0.03 |
| Rabid Wombat | 1 | 0.03 |
| Halsin, Emerald Archdruid + Feywild Visitor | 1 | 0.03 |
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