Morska, Undersea Sleuth
Legendary Creature — Vedalken Fish Detective
You have no maximum hand size.
At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with "
, Sacrifice this token: Draw a card.")
Whenever you draw your second card each turn, put two +1/+1 counters on Morska.
- CMC
- 3
- Mana cost
- Color identity
- GUW
- Rarity
- mythic
- Set
- Murders at Karlov Manor Commander
- Price
- —
- EDHREC rank
- #8232
Morska, Undersea Sleuth turns every Clue token into a card draw trigger, making it a persistent card-advantage engine the moment it hits the battlefield. Sophia, Dogged Detective decks in particular run it as a near-automatic include because the two cards form a self-reinforcing loop — investigate, draw, repeat.
Best Commanders
Commanders with the highest synergy
Sophia, Dogged Detective
Sophia, Dogged Detective generates Clues constantly, and Morska, Undersea Sleuth converts each sacrifice of those Clues into an additional draw trigger, compounding the card advantage until the engine becomes difficult to race.
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 | not legal |
| oathbreaker | legal |
Morska, Undersea Sleuth is a Commander card through and through — the Clue and investigation synergies it plugs into are most developed in that format's card pool, and the 100-card singleton structure rewards dedicated payoffs like this one. In Legacy and Vintage it's technically legal but has no competitive home; neither format runs the kind of Clue-generating infrastructure that makes Morska meaningful, and three mana for a conditional draw effect doesn't clear the bar in those environments. Oathbreaker is the one other format worth mentioning — if you're running a Clue-matters planeswalker as your oathbreaker, Morska slots in cleanly.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Pricing data for Morska, Undersea Sleuth isn't available yet, which typically means it's a recent release still finding its market level. Check Scryfall or TCGPlayer for current listings before buying.
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Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.