Cheapest priced copy (Commander 2019): $0.35 at Card Kingdom, near mint, their price list as of .
Runic Repetition 
Sorcery · Uncommon · Innistrad · #72
Return target exiled card with flashback you own to your hand.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2019 | 94 | Uncommon | $0.35 | — |
| Innistrad | 72 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 22 September 2011An effect that gives flashback to an instant or sorcery card in your graveyard stops applying once that card has left the stack. The card won’t have flashback while exiled and can’t be the target of Runic Repetition (unless it naturally has flashback).
- 22 September 2011A card that’s exiled face down doesn’t have any characteristics or abilities, so it can’t be the target of Runic Repetition.
- 22 September 2011The card could have been exiled for any reason, not just because it was cast using flashback.