Cheapest priced copy (Aetherdrift Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Sai, Master Thopterist 
Legendary Creature — Human Artificer · 1/4 · Rare · Core Set 2019 · #69
Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.
{1}{U}, Sacrifice two artifacts: Draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
10 printings · $0.49 to $13.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War Commander | 93 | Rare | $1.49 | — |
| Commander Masters | 118 | Rare | $0.79 | $4.49 |
| Commander Masters | 494 | Rare | — | — |
| Aetherdrift Commander | 82 | Rare | $0.49 | — |
| Foundations Commander | 5 | Mythic | — | $0.99 |
| Foundations Jumpstart | 63 | Rare | $0.49 | — |
| Core Set 2019 | 69 | Rare | $0.49 | $4.49 |
| Neon Dynasty Commander | 97 | Rare | $0.49 | — |
| Core Set 2019 Promos | 69p | Rare | $10.99 | $13.99 |
| Core Set 2019 Promos | 69s | Rare | — | $7.49 |
One ruling from Wizards of the Coast
- 13 July 2018Sai's triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.