In this event there are relics available in the postal boxes as well. There is also final group rewards for the Spire and Tournament. Spire should be soon, just a little under 3 hours from now. Take care, some quests are worded a little differently than others and may have exemptions.
@Estaish Personally I always find the Tourneys a very quick and efficient way to gain a good amount of relics in a short period of time (if of course a Tournament is running concurrently with an event!)