We had our first party death, except it didn't exactly stick.......Aeron knows Revivify.

It didn't come without a cost though since he learned it through his Warlock Tome, so his patron (whom he is at best at odds with) had some things to say. Aeron ended up promising essentially 1 vague future debt to his patron to be redeemed at a later time, and Aeron also came out of it with a tail feather completely bleached white (a different white to his naturally white feathers).

And also bringing people back from full and actual death, and being brought back from full and actual death, are sins against Aeron's god, the Raven Queen. So that's been interesting to deal with.