From DominionStrategy Wiki
|Gain a Curse. If you do, trash a card from your hand. +1per it cost.|
 Official FAQ
- This does nothing once the Curse pile is empty.
- This only gives you +1 per the trashed card cost; it does not give anything for or in costs.
 Other rules clarifications
- Unlike similar cards or Events, Ritual cares about the cost of the card at the instant it is trashed, rather than checking on it later, when its cost may have changed.
 In other languages
- Dutch: Ritueel
- Finnish: Rituaali
- German: Ritual
- Japanese: 儀式 (pron. gishiki)
- Polish: Rytuał
- Russian: Ритуал (pron. ritual)
 Secret Historyper 2 Actions in play. It was a dud, then I tried trashing a card for , and there it is.