Cheapest priced copy (Murders at Karlov Manor): $0.35 at Card Kingdom, near mint, their price list as of .
Red Herring 
Artifact Creature — Clue Fish · 2/2 · Rare · Mystery Booster Playtest Cards 2019 · #62
Haste
This creature attacks each combat if able.
{2}, Sacrifice this creature: Draw a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
3 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mystery Booster Playtest Cards 2019 | 62 | Rare | $1.49Out of stock | — |
| Mystery Booster Playtest Cards 2021 | 62 | Rare | $0.69 | — |
| Murders at Karlov Manor | 142 | Common | $0.35 | $0.49 |
5 rulings from Wizards of the Coast
- 12 November 2019You reveal Red Herring in your hand as you activate its ability, but you choose which spell or permanent to exchange as the ability resolves. No player may take actions between the time you choose a spell or permanent and the time you make the exchange.
- 12 November 2019If the returned object was attacking or blocking, so is Red Herring. If it was tapped, face down, or flipped, so is Red Herring.
- 12 November 2019Any counters on the returned object, objects attached to the returned object, or continuous effects affecting the returned object will be on, attached to, and/or affecting Red Herring.
- 12 November 2019If Red Herring isn’t a legal target for a spell or ability that targets the returned spell or permanent, that spell continues to target what it originally did. That spell or permanent will be an illegal target for the spell or ability, and that spell or ability won’t affect it.
- 12 November 2019If Red Herring leaves your hand before its ability resolves, you can’t exchange it or change the target of a spell.