Three simple tweaks to improve Eveningstar challenges:
1. Change rewards from bound-to-character to bound-to-account (Cannith challenge rewards are bound-to-account as well).
2. Allow 2:1 conversion of reward tokens you have for reward tokens you want (2 platinum tricrown into 1 gold lion). With U15, there are certain rewards that only casters want, while some tokens that only melee want.
3. Increase the rewards from Ring of Fire to be commensurate for the time spent in the quest. 250 gold lions on CR30 for 10 minutes is half the reward compared to other 10-minute Eveningstar challenges.