Serpent of Yawning Depths
Enchantment Creature — Serpent
Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.
- CMC
- 6
- Mana cost
- Color identity
- U
- Rarity
- rare
- Set
- Secret Lair Drop
- Price
- —
- EDHREC rank
- #4506
Serpent of Yawning Depths blankets the board with a Islandwalk-style evasion grant for every Kraken, Leviathan, Octopus, and Serpent you control — making an already-threatening tribe effectively unblockable against blue-heavy tables. The cost is real at six mana for a 6/6, but Kenessos, Priest of Thassa can cheat it into play for free, erasing that objection entirely.
Best Commanders
Commanders with the highest synergy
Kenessos, Priest of Thassa
Kenessos, Priest of Thassa puts Serpent of Yawning Depths directly onto the battlefield by revealing it off the top, making the six-mana cost irrelevant — and once it lands, every sea creature in the deck suddenly punches through blue-based blockers for free.
Kiora, Sovereign of the Deep
Kiora, Sovereign of the Deep triggers off casting Serpent of Yawning Depths and other sea creatures to cascade into more threats, so Serpent does double duty as both a payoff that grants evasion and a trigger that fuels Kiora's chain.
Runo Stromkirk
Runo Stromkirk rewards packing the biggest Krakens and Leviathans available, and Serpent of Yawning Depths checks both boxes — it's a six-power creature that unlocks Runo's transform condition while giving every other monster in the deck a clear path to the face.
Koma, Cosmos Serpent
Koma, Cosmos Serpent decks lean on the Serpent type to make Koma's Coil tokens and the commander itself unblockable via Serpent of Yawning Depths, turning a token-flooding strategy into one that also threatens lethal damage through nearly any defense.
Koma, World-Eater
Koma, World-Eater attacks aggressively and wants creature types that benefit from evasion, so Serpent of Yawning Depths earns its slot by ensuring the whole board's sea-creature attacks connect rather than stall against blue-island defenses.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Serpent of Yawning Depths actually belongs — sea-creature tribal is almost exclusively a Commander archetype, and the evasion it grants is most relevant across 40-life games where blocking matters longer. In Legacy, Modern, and Pioneer it's technically legal but competes with a deep field of six-mana threats that do something immediately and unconditionally, so it never sees play there. Vintage is the same story: the power level of that format demands broken at six mana, not tribal support. Oathbreaker is the one fringe case worth noting, since a sea-creature oathbreaker shell could use Serpent of Yawning Depths as a signature spell surrogate — but even there, Commander remains the correct home.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Current pricing data for Serpent of Yawning Depths isn't available in this snapshot, so check Scryfall or TCGPlayer for the live number before buying. Given its narrow tribal application and the volume of sea-creature precon reprints, it's historically been a budget pickup — expect a low single-digit price unless demand has shifted.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.