Cheapest priced copy (Commander Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Windrider Wizard 
Creature — Human Wizard · 2/2 · Uncommon · Zendikar Rising · #87
Flying
Whenever you cast an instant, sorcery, or Wizard spell, you may draw a card. If you do, discard a card.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 134 | Common | $0.35 | $0.49 |
| Zendikar Rising | 87 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 25 September 2020A Wizard spell is one with the creature type Wizard. Spells that are Wizard-themed (such as Relic Amulet) aren’t Wizard spells.
- 25 September 2020An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger, but after targets have been chosen for that spell (if it has any targets). The ability resolves even if that spell is countered.
- 25 September 2020You draw a card and discard a card while Windrider Wizard’s last ability is resolving. No player may take actions between those events, and nothing can happen.