Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Molecular Modifier 
Creature — Kavu Artificer · 2/2 · Uncommon · Edge of Eternities · #146
At the beginning of combat on your turn, target creature you control gets +1/+0 and gains first strike 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 |
|---|---|---|---|---|
| Edge of Eternities | 146 | Uncommon | $0.35 | $0.49 |