Cheapest priced copy (Dominaria United Commander): $0.79 at Card Kingdom, near mint, their price list as of .
Faithless Looting 
Sorcery · Common · Eternal Masters · #128
Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
28 printings · $0.79 to $37.99 at Card Kingdom
7 rulings from Wizards of the Coast
- 8 June 2016You draw two cards and discard two cards all while Faithless Looting is resolving. Nothing can happen between the two, and no player may choose to take actions.
- 6 June 2025"Flashback [cost]" means "You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."
- 6 June 2025You can cast a spell using flashback even if it was somehow put into your graveyard without having been cast.
- 6 June 2025You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.
- 6 June 2025If a card with flashback is put into your graveyard during your turn, you can cast it if it's legal to do so before any other player can take any actions.
- 6 June 2025To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
- 6 June 2025A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.