Thought Vessel
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Artifact
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Duskmourn: House of Horror Commander (DSC)
Thought Vessel sits in 16% of tracked Commander decks on Playgroup Live. When drawn, players cast it 67% of the time, with a median first-cast turn of 4.
Thought Vessel appears in 276 of the 1,711 distinct Commander decks tracked on Playgroup Live, a 16% inclusion rate that reflects its role as a role-player rather than a universal staple. It combines two functions in one two-mana artifact: a colorless mana rock and a permanent hand-size waiver, making it most attractive in decks that draw aggressively.
The draw-to-play rate of 67% is the most telling number. When Thought Vessel reaches a player's hand, two thirds of the time it hits the battlefield before the game ends. The median cast turn is 4, meaning it lands a couple turns after the most explosive turn-1 or turn-2 ramp windows, which is consistent with being drawn mid-game rather than kept in an opening hand. Only 55% of drawn-and-cast instances were cast on the same turn they were drawn, suggesting players occasionally hold it a turn while navigating mana priorities.
Colorless identity means every Commander archetype is eligible. The top-commander list spans blue-heavy draw engines, artifact synergy decks, and wide token strategies, each leaning on the hand-size clause in different ways. That breadth is an early directional signal that Thought Vessel's value is situational and deck-dependent rather than universally mandatory.
- 16% of tracked Commander decks include Thought Vessel
- 67% of drawn copies are cast before the game ends
- T4 median first-cast turn
- 81% battlefield stickiness once cast
- 55% of cast copies were played the same turn they were drawn
- 98 total casts observed across 370 tracked games
First-cast turn
n=113The "good card" funnel
597 broughtOf 459 Thought Vessels brought to games, 140 were drawn, 98 of those were cast, and 79 remained on the battlefield when the final game state resolved.
Players who cast this card win 37% of the time (n=113) , vs 35% when it never left the library (n=424).
Final zone distribution
597 instances314 of 459 Thought Vessels never left the library, a structural reality of 100-card singleton decks rather than a verdict on the card's power.
Top commanders running this card
by deck count-
1
Y'shtola, Night's Blessed
29 decks
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2
Éowyn, Shieldmaiden
18 decks
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3
Galazeth Prismari
17 decks
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4
Valgavoth, Harrower of Souls
15 decks
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5
Magnus the Red
13 decks
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6
Bello, Bard of the Brambles
12 decks
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7
Ms. Bumbleflower
11 decks
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8
Krang, the All-Powerful
10 decks
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9
Nelly Borca, Impulsive Accuser
10 decks
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10
Ghyrson Starn, Kelermorph
9 decks
The top 10 commanders span eight distinct color identities and range from 9 to 19 decks each, showing Thought Vessel spreads broadly rather than concentrating in one archetype.
How often is Thought Vessel drawn in a Commander game? ▾
Across 459 deck-participations, Thought Vessel was drawn 140 times, a draw rate of 30.5%. That is somewhat elevated for a singleton in a 100-card deck, likely because many of its most common homes are blue-heavy decks with high card draw density. Of those 140 drawn instances, 98 were cast, giving a draw-to-play rate of 67%.
What turn does Thought Vessel typically hit the battlefield? ▾
The median first-cast turn is 4, with the 25th percentile at turn 2 and the 75th percentile at turn 7. The distribution is fairly spread: 13 casts happened on turn 1 (drawn in an opening hand with a fast start), 19 on turn 2, and a long tail extends to turn 13. That spread reflects a card drawn at all stages of a game rather than one reliably played in the opening sequence.
Does casting Thought Vessel actually help you win? ▾
The data so far shows a cast win rate of 34.7% versus a library win rate of 36.3%, a delta of roughly -1.6 percentage points. Both sample sizes are large enough to treat as directional: n=98 for cast and n=314 for library. The gap is small and could reflect selection effects, such as players in already-strong board states drawing and casting it late. We would not read this as evidence the card hurts your win rate; the signal is effectively flat at this sample size.
Is Thought Vessel legal in Commander? ▾
Yes. Thought Vessel is legal in Commander, Duel Commander, Oathbreaker, Pauper Commander, Legacy, Vintage, and Pauper. It is not legal in Modern, Pioneer, Standard, Historic, Alchemy, Brawl, or Timeless. Its colorless identity means it fits in any Commander deck regardless of color restrictions.
Why do blue-heavy decks include Thought Vessel most often? ▾
The top commanders in our dataset skew blue: Y'shtola, Galazeth Prismari, Éowyn, Magnus the Red, and Krang all appear near the top. Blue is the format's dominant draw color, and the no-maximum-hand-size clause on Thought Vessel pays off most in decks that regularly hit seven or more cards. A two-mana rock that also eliminates the discard-to-seven tax is a natural fit for that strategy.
How sticky is Thought Vessel once it resolves? ▾
81% of cast Thought Vessels were still on the battlefield when the game ended. That is a reasonable stickiness figure for a zero-ability artifact that does not threaten opponents directly. Removal is rarely spent on a mana rock that does not produce colored mana, and the hand-size ability is often seen as a low-priority target unless the opponent is clearly leveraging it for a large hand engine.