Bog Serpent

Creature — Serpent

This creature can't attack unless defending player controls a Swamp.
When you control no Swamps, sacrifice this creature.

CMC
6
Mana cost
{5}{B}
Color identity
B
Rarity
common
Set
Planar Chaos
Price
$0.11
EDHREC rank
#29569
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Bog Serpent card art
Bog Serpent is a 5/4 for six mana that can't block and gets exiled if you ever run out of Swamps — a steep and embarrassing drawback stapled to a vanilla body. The only shell where it earns a slot is Jon Irenicus, Shattered One, where donating a liability turns the downside into a weapon.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Bog Serpent sees essentially no competitive play in Legacy, Vintage, or Modern — formats where six mana buys game-ending threats, not conditional vanilla creatures. In Pauper the common-card pool is generous enough that a 5/4 with a self-destruct clause doesn't make the cut over cheaper, cleaner threats. Commander is the only format where Bog Serpent finds a functional niche, specifically in gift-and-curse strategies led by Jon Irenicus, Shattered One, where the card's downside becomes the point.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.11 bulk tier

At $0.11, Bog Serpent sits firmly in bulk territory and will stay there — demand is too narrow to move the needle. Buy it for pennies if you're building Irenicus; otherwise it has no financial relevance.

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.