A system where you can prestige your skills back to level 1 and after predigesting that skill you gain a skill/prestige point which you will be able to spend in the shop.
The shop could have items such as crystal keys , cosmetics and stuff like ornament kits for drag picaxe and fury and other items that you can use ornament kits on.
This might give incentive for players to skill more and aim to gain the harder to obtain items in the game.