Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Thunderous Orator 
Creature — Kor Wizard · 2/2 · Uncommon · Strixhaven: School of Mages · #35
Vigilance
Whenever this creature attacks, it gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, indestructible, lifelink, menace, and trample.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | STX-35 | Uncommon | $0.35 | — |
| Strixhaven: School of Mages | 35 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 16 April 2021If you control a creature with one of the abilities listed in the last sentence, Thunderous Orator will gain the that ability, not flying.
- 16 April 2021Check the creatures you control as the triggered ability resolves to determine which abilities Thunderous Orator gains. Once Thunderous Orator gains an ability, it doesn’t matter what happens to other creatures you control with that ability.