Cheapest priced copy (Game Night 2019): $0.35 at Card Kingdom, near mint, their price list as of .
Aven Wind Mage 
Creature — Bird Wizard · 2/2 · Common · Core Set 2019 · #45
Flying
Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Game Night 2019 | 16 | Common | $0.35 | — |
| Core Set 2019 | 45 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 13 July 2018Aven Wind Mage’s triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.