Morska, Undersea Sleuth

Murders at Karlov Manor Commander · 2024 Commander precon

Deep Clue Sea upgrade guide

Budget upgrades, cuts and the full decklist for Morska, Undersea Sleuth.

Colors
WUG
Deck value
$129.99
Avg mana value
3.71
$50 plan
10 swaps

Deep Clue Sea is a Bant (white-blue-green) Commander precon from Murders at Karlov Manor Commander (2024), led by Morska, Undersea Sleuth. Out of the box it runs 37 lands, 10 ramp pieces, 31 card-draw effects, 4 removal spells and 2 board wipes, with an average mana value of 3.71.

Measured against a typical Commander build, it's lightest on removal and board wipes, and 14 of its lands enter tapped. Its game plan leans on tokens, artifacts and +1/+1 counters, so the plan below favors cards that push that. The $50 plan below makes 10 swaps for $17.91.

Deck health

PreconAfter upgradesTarget
Lands37
✓ Good land count
Ramp10
✓ On target
Card draw31→27
✓ On target
Removal4→7
1 short of ~8
Board wipes2
1 short of ~3
Protection0→2
✓ On target

$50 budget plan

Best upgrades for Deep Clue Sea

10 swaps for $17.91, built around tokens and artifacts and +1/+1 counters. Prices as of November 6, 2026.

Add 10

Cut 10

  • Enters tapped — slows your early turns
  • Enters tapped — slows your early turns
  • Enters tapped — slows your early turns
  • Costs 6 mana · Doesn't support the deck's plan
  • Rarely played (#11,383 on EDHREC) · Extra card draw: deck already has 31 (~10 is plenty)
  • Rarely played (#20,894 on EDHREC) · Extra card draw: deck already has 31 (~10 is plenty)
  • Rarely played (#8,142 on EDHREC) · Doesn't support the deck's plan
  • Rarely played (#13,549 on EDHREC) · Extra card draw: deck already has 31 (~10 is plenty)
  • Rarely played (#12,987 on EDHREC) · Extra card draw: deck already has 31 (~10 is plenty)
  • Rarely played (#12,245 on EDHREC) · Extra card draw: deck already has 31 (~10 is plenty)
Want a different budget, more swaps, or Game Changers? Open this deck in the upgrade tool to rebuild the plan with live prices, swap any pick for alternatives, and keep cards you love.

Deep Clue Sea decklist

Commander (1)

Planeswalkers (1)

FAQ

How much is the Deep Clue Sea precon worth?

At current prices the 100 cards in Deep Clue Sea are worth about $129.99 as singles (cheapest printings, TCGplayer market price as of November 6, 2026).

What are the best budget upgrades for Deep Clue Sea?

For about $17.91, our top picks are Swiftfoot Boots, Beast Within, Lightning Greaves, Path to Exile, Maskwood Nexus. The full 10-card plan with cuts is above, and the upgrade tool can rebuild it for any budget.

What should I cut from Deep Clue Sea?

Start with Secluded Steppe, Lonely Sandbar, Tranquil Thicket, Esix, Fractal Bloom. These are the least-played or slowest cards that don't support the deck's plan.

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