Never thought about it until now, but getting a rare reward from a clue scroll is broadcasted to the server like shown below
(Congrats btw)
From previous updates which gives the total amount of clues completed on a account as well as the specific tier, the info could be incorporated to the broadcast similar to a pet drop/rare drops where the amount of clues it took to receive loot.
Would end up looking like all the other broadcasts,
It would be Clue #102, or Casket #102 rather than Kill # .
I think would be a nice QoL to add since rewards that broadcast from clues such as 3a is very rare, it would be interesting to see the amount of clues a player had done/caskets opened to receive it.