Thorough Investigation
Thorough Investigation Price Summary
As of Jul 28, 2026, the cheapest tracked printing of Thorough Investigation is $3.44 (AFC #12). The benchmark price (cheapest playable nonfoil) is $3.44, down 0.3% over 7 days, down 0.9% over 30 days, up 8.5% over 90 days. All-time tracked high: $4.01 (2026).
Thorough Investigation Printings & Prices
Thorough Investigation has 2 tracked printings across 1 sets, in nonfoil finishes, including extended art treatments.
Sell Thorough Investigation: Buylist Offers
Card Kingdom currently pays $2.00 cash for AFC #281; the retail-buylist spread on that printing is 60% (wide).
| Buyer | Printing | Finish | Cash offer | Retail | Spread |
|---|---|---|---|---|---|
| CoolStuffInc | AFC #281 | Nonfoil | $2.00 | — | — |
| Card Kingdom | AFC #281 | Nonfoil | $2.00 | $4.99 | 60% |
| CoolStuffInc | AFC #12 | Nonfoil | $1.50 | — | — |
| Card Kingdom | AFC #12 | Nonfoil | $0.90 | $4.49 | 80% |
Thorough Investigation Rules Text & Legality
Whenever you attack, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
Whenever you sacrifice a Clue, venture into the dungeon. (Enter the first room or advance to the next room.)
Thorough Investigation is legal in Legacy and Commander, and not legal in Standard, Pioneer, Modern and Pauper.
Thorough Investigation Rulings
- Jul 23, 2021 A player may only have one dungeon in the command zone at a time.
- Jul 23, 2021 Choosing the dungeon or room to venture into is part of resolving the venture into the dungeon keyword action. Once that choice is made, players may not respond until after the appropriate room ability has triggered.
- Jul 23, 2021 Dungeon cards are not part of a player's deck or sideboard. In both constructed and limited formats, players can use any dungeon card when they venture into the dungeon.
- Jul 23, 2021 Dungeons are removed from the game as a state-based action.
- Jul 23, 2021 If you somehow venture into the dungeon while a room's ability is on the stack, you will continue on in the dungeon. If you're already in the last room, complete that dungeon and start a new one.
Reprints & Reprint Risk
Thorough Investigation has been reprinted 2 times.
| Set | Date | Rarity | Treatment |
|---|---|---|---|
| AFC #12 | 2021-07-23 | Rare | Standard |
| AFC #281 | 2021-07-23 | Rare | Extended Art |
AFC #12 Thorough Investigation in Commander
Thorough Investigation is the #6,941 most-played card on EDHREC, down 116 places over the last 30 days.
Thorough Investigation FAQ
How much is Thorough Investigation worth?
Thorough Investigation is worth about $3.44 for its cheapest playable printing as of Jul 28, 2026.
Is Thorough Investigation legal in Commander?
Yes — Thorough Investigation is legal in Commander. It is also legal in Legacy.
Has Thorough Investigation been reprinted?
Yes — Thorough Investigation has been reprinted 2 times, with 2 printings tracked on The Index.
Why is Thorough Investigation cheap?
Thorough Investigation trades at about $3.44 — 2 reprints keep supply plentiful, and Commander demand is modest (#6,941 on EDHREC).