DOUBLE RAINBOW FOILCheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Self-Assembler 
Artifact Creature — Assembly-Worker · 4/4 · Uncommon · The Brothers' War Retro Artifacts · #114z
When this creature enters, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
6 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 231 | Common | $0.35 | $0.49 |
| The Brothers' War Retro Artifacts | 51 | Uncommon | $0.35 | $0.49 |
| The Brothers' War Retro Artifacts | 114 | Uncommon | $0.35 | $0.49 |
| The Brothers' War Retro Artifacts | 114z | Uncommon | — | — |
| Jumpstart 2022 | 795 | Common | $0.35 | — |
| Kaladesh | 232 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 16 March 2018Self-Assembler's ability can find any creature card with the Assembly-Worker subtype, not only creature cards named Assembly-Worker. Notably, it can't find Mishra's Factory.