Marsh Boa
Creature — Snake
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
- CMC
- 1
- Mana cost
- Color identity
- G
- Rarity
- common
- Set
- Prophecy
- Price
- $0.18
- EDHREC rank
- #19388
Marsh Boa is a 2/2 with swampwalk for two mana — playable only because Aphelia, Viper Whisperer makes snake tribal a real strategy, not because the statline earns its slot on merit. Outside that specific shell, it's a bulk vanilla.
Best Commanders
Commanders with the highest synergy
Aphelia, Viper Whisperer
Aphelia, Viper Whisperer wants every snake it can find, and Marsh Boa fills a two-drop slot while threatening unblockability in any black-heavy meta where opponents are likely running swamps.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
Marsh Boa sees essentially no play outside Commander, where tribal synergy with Aphelia, Viper Whisperer is the only real justification for running it. In Pauper it's legal but unplayed — swampwalk is too conditional to compete when two mana buys creatures with actual keywords or enters-the-battlefield value. Legacy and Vintage are legal in name only; Marsh Boa has never been relevant at those tables. Commander is its home, and even there it's a fringe include.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.18 bulk tier
At $0.18, Marsh Boa is deep bulk — the kind of card you pull from a common box, not a store shelf. Bulk snake commons don't appreciate unless a breakout tribal commander drives demand, so don't expect movement.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.