Cheapest priced copy (Fifth Dawn): $0.35 at Card Kingdom, near mint, their price list as of .
Trinket Mage 
Creature — Human Wizard · 2/2 · Common · Duel Decks: Elspeth vs. Tezzeret · #49
When this creature enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
8 printings · $0.35 to $54.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 39 | Common | $0.35 | $15.99 |
| Commander 2016 | 102 | Common | $0.39 | — |
| Duel Decks: Elspeth vs. Tezzeret | 49 | Common | $0.35 | — |
| Duel Decks: Elves vs. Inventors | 41 | Common | $0.35 | — |
| The List | DDU-41 | Common | $0.49 | — |
| Wizards Play Network 2025 | 8 | Rare | — | $0.69 |
| Scars of Mirrodin | 48 | Uncommon | $0.35 | $3.99 |
| Time Spiral Remastered | 320 | Special | $2.29 | $54.99 |
One ruling from Wizards of the Coast
- 19 March 2021If a card in a player's library has {X} in its mana cost, X is considered to be 0.