From DominionStrategy Wiki
Choose one: Trash a Treasure from your hand; or gain a Treasure from the trash to your hand; or take the Key.
Treasurer is an Action card from Renaissance. It is a terminal gold that either trashes a Treasure from your hand, gains a trashed Treasure to your hand, or gets you its corresponding Artifact, the Key.
 Official FAQ
- When you use a Treasurer to gain a Treasure from the trash, that can trigger abilities like the ones on Ducat and Spices.
- You can choose to take the Key even if you already have it.
 English versions
|+. Choose one: Trash a Treasure from your hand; or gain a Treasure from the trash to your hand; or take the Key.||Renaissance||November 2018|
 Other language versions
 Secret History