Cheapest priced copy (Secrets of Strixhaven): $0.35 at Card Kingdom, near mint, their price list as of .
Dissection Practice 
Instant · Uncommon · Secrets of Strixhaven · #79
Target opponent loses 1 life and you gain 1 life.
Up to one target creature gets +1/+1 until end of turn.
Up to one target creature gets -1/-1 until end of turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven | 79 | Uncommon | $0.35 | $0.49 |