Cheapest priced copy (Murders at Karlov Manor): $0.35 at Card Kingdom, near mint, their price list as of .
Sanitation Automaton 
Artifact Creature — Construct · 2/1 · Common · Murders at Karlov Manor · #256
When this creature enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Murders at Karlov Manor | 256 | Common | $0.35 | $0.49 |