Cheapest priced copy (Kaladesh): $0.35 at Card Kingdom, near mint, their price list as of .
Shrewd Negotiation 
Sorcery · Uncommon · Kaladesh · #64
Exchange control of target artifact you control and target artifact or creature you don't control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaladesh | 64 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 20 September 2016In a multiplayer game, if a player leaves the game, all cards that player owns leave as well, and any effects that give the player control of permanents immediately end.
- 20 September 2016Gaining control of an Equipment doesn't cause it to move, though it will allow you to activate its equip ability later to attach it to a creature you control.
- 20 September 2016If one of the target permanents is an illegal target as Shrewd Negotiation resolves, the exchange won't happen.