Cheapest priced copy (Guilds of Ravnica): $0.35 at Card Kingdom, near mint, their price list as of .
Sinister Sabotage 
Instant · Uncommon · Guilds of Ravnica · #54
Counter target spell.
Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guilds of Ravnica | 54 | Uncommon | $0.35 | $0.49 |
| Guilds of Ravnica Promos | 54 | Uncommon | — | $0.49 |
| Ravnica Remastered | 61 | Common | $0.39 | $0.49 |
| Starter Commander Decks | 60 | Uncommon | $0.35 | — |
3 rulings from Wizards of the Coast
- 5 October 2018A spell that can't be countered is a legal target for Sinister Sabotage. The spell won't be countered when Sinister Sabotage resolves, but you'll still surveil 1.
- 12 January 2024You perform the actions stated on a card in sequence. For some spells and abilities, you'll surveil last. For others, you'll surveil and then perform other actions.
- 12 January 2024Some spells that instruct you to surveil require targets. You can't cast a spell without choosing legal targets. If all of those targets become illegal, the spell doesn't resolve and you won't surveil.