Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Frogmite 
Artifact Creature — Frog · 2/2 · Common · Mirrodin · #172
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
7 printings · $0.35 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Elspeth vs. Tezzeret | 51 | Common | $0.49 | — |
| Modern Masters 2015 | 215 | Common | $0.49 | $0.79 |
| Modern Masters | 207 | Common | $0.49 | $0.99 |
| Mirrodin | 172 | Common | $0.49 | $8.99 |
| The List | MM2-215 | Common | $0.35 | — |
| Special Guests | 61 | Mythic | $6.49 | $7.99 |
| World Championship Decks 2004 | ap172 | Common | $0.35 | — |