---
name: "River Boa"
mana_cost: "{1}{G}"
cmc: 2
type_line: "Creature — Snake"
colors: ["G"]
color_identity: ["G"]
keywords: ["Landwalk", "Regenerate", "Islandwalk"]
set: "PS11"
set_name: "Salvat 2011"
collector_number: "156"
rarity: "uncommon"
artist: "Paul Bonner"
oracle_id: "86187aed-77ce-4b2d-aab0-0a8f807a9451"
canonical_url: "https://avascry.com/printing/river-boa-ps11"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "legal"
---

# River Boa
- **Mana Cost:** `{1}{G}` (CMC: 2)
- **Type:** Creature — Snake
- **Power/Toughness:** 2/1
- **Keywords:** Landwalk, Regenerate, Islandwalk

## Oracle Text
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
{G}: Regenerate this creature.

## Top 4096-Dim Neural Synergies
1. [Mire Boa](/printing/mire-boa-plc.md) — Creature — Snake
2. [River Bear](/printing/river-bear-9ed.md) — Creature — Bear
3. [Marsh Boa](/printing/marsh-boa-pcy.md) — Creature — Snake
4. [Grayscaled Gharial](/printing/grayscaled-gharial-rav.md) — Creature — Crocodile
5. [Harbor Serpent](/printing/harbor-serpent-m12.md) — Creature — Serpent
6. [Segovian Leviathan](/printing/segovian-leviathan-4ed.md) — Creature — Leviathan

## Printing Details
- **Set:** Salvat 2011 (PS11) #156
- **Rarity:** Uncommon
- **Artist:** Paul Bonner
- **Total Printings:** 37 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `not_legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `legal` | Penny: `legal`