Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Olivia's Dragoon 
Creature — Vampire Berserker · 2/2 · Common · Eldritch Moon · #100
Discard a card: This creature gains flying until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 100 | Common | $0.35 | $0.49 |
| Innistrad Remastered | 127 | Common | $0.35 | $0.49 |
| Ultimate Masters | 109 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 7 December 2018You can activate the ability of Olivia’s Dragoon more than once in a turn, even if it already has flying.