Cheapest priced copy (Jumpstart 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Floodhound 
Creature — Elemental Dog · 1/2 · Common · Jumpstart 2022 · #300
{3}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 300 | Common | $0.35 | — |
| Modern Horizons 2 | 42 | Common | $0.35 | $0.49 |
| Modern Horizons 2 | 335 | Common | $0.35 | $0.49 |
| The List | MH2-42 | Common | $0.35 | — |
2 rulings from Wizards of the Coast
- 18 June 2021The token is named Clue Token and has the artifact subtype Clue. Clue isn't a creature type.
- 18 June 2021You can't sacrifice a Clue to activate its own ability and also to activate another ability that requires sacrificing a Clue (or any artifact) as a cost, such as that of Lonis, Cryptozoologist.