Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Midnight Scavengers 
Creature — Human Rogue · 3/3 · Common · Eldritch Moon · #96
When this creature enters, you may return target creature card with mana value 3 or less from your graveyard to your hand.
(Melds with Graf Rats.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 96 | Common | $0.35 | $0.49 |
| Innistrad Remastered | 123 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 13 July 2016For more information on meld cards, see the Eldritch Moon mechanics article (https://magic.wizards.com/en/articles/archive/feature/eldritch-moon-mechanics-2016-06-27).
- 13 July 2016The set of creatures affected by Chittering Host's triggered ability is determined as the ability resolves. Creatures you begin to control later in the turn won't get +1/+0 or gain menace.
- 13 July 2016If a card in a player's graveyard has {X} in its mana cost, X is considered to be 0.