Given that finding the best set of skills/traits is so much work (and expensive), we should reward originator of that top build as long as they maintain highest xp or kill/duel ratio. This can be in the form of monetary reward, NFT loot bundle, or MAYBE the reward can come from (top ten) copy cats of the top build? This would incentivize finding a top build rather than copying others which is what is done so frequently now. RAWDOG is example of top elf/stab build to receive royalties. Etc.