you are able to cast a cleric spell being a ritual if that spell has the ritual tag and you've got the spell well prepared.
Duergar: you have to seize invisibility, which you don't Ordinarily have entry to. Also, the https://crithitceramics.com/mastering-the-divine-a-beginners-guide-to-playing-a-female-aasimar-cleric-in-dd/