Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Selfcraft Mechan 
Artifact Creature — Robot Artificer · 3/4 · Common · Edge of Eternities · #74
When this creature enters, you may sacrifice an artifact. When you do, put a +1/+1 counter on target creature and draw a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 74 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 25 July 2025You don’t choose a target for Selfcraft Mechan’s ability at the time it triggers. Rather, a second “reflexive” ability triggers when you sacrifice an artifact this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal. Then if the target creature is an illegal target as the reflexive trigger tries to resolve, it won’t resolve and you won’t draw a card.