River Heralds' Boon 
Instant
Appears in 53 of 27,188 decks (0.2%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Merfolk Mistbinder | 19 | 0.65 |
| Nicanzil, Current Conductor | 9 | 0.3 |
| Shapers of Nature | 3 | 0.43 |
| Herd Baloth | 3 | 0.03 |
| Tatyova, Steward of Tides | 3 | 0.01 |
| Tatyova, Benthic Druid | 3 | 0.0 |
| Zameck Guildmage | 2 | 0.03 |
| Mowu, Loyal Companion | 2 | 0.03 |
| Gnarlback Rhino | 1 | None |
| Kami of Whispered Hopes | 1 | None |
| Lilysplash Mentor | 1 | None |
| Congregation Gryff | 1 | 0.5 |
| Merfolk Skydiver | 1 | 0.05 |
| Moritte of the Frost | 1 | 0.03 |
| Scurry Oak | 1 | 0.02 |
| Hamza, Guardian of Arashin | 1 | 0.0 |
| Hallar, the Firefletcher | 1 | 0.0 |
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