What it does
Bargain lets you sacrifice an artifact, enchantment, or token as you cast the spell, usually granting a bonus effect or improved value. You're not required to bargain—if you can't or don't want to, the spell still resolves normally, just without the upside.
The big rules nuance: bargaining happens as an additional cost while casting, so the sacrifice occurs immediately, before the spell goes on the stack and before anyone can respond. Opponents can't kill the artifact or token in response to deny the bonus. Also, any token works—even a Treasure or Clue—so you don't need a "real" permanent. And spells often check "if this spell was bargained" later, rewarding you on resolution.
In Commander, bargain shines in token-heavy or sacrifice-themed decks where you'd produce expendable tokens or Treasures anyway. It turns otherwise idle permanents into extra spell value, and it pairs beautifully with token doublers and recursion engines.













