So I know a lot of people say they want a fix to the anvil too expensive level cap in survival mode. From my understanding this is impossible because this is determined on the client side not server side. My idea would be a plugin that would put a player in creative mode only while using the anvil GUI, and once they leave the GUI they go back to survival mode. I am not a plugin writer but though this could be a reasonable idea that would allow a survival player to get around the anvil level cap. I am not sure if this is possible, but it seems somewhat reasonable to me. While they are in the anvil GUI they can't view inventory without leaving the GUI so they can't give themselves items form the creative inventory. Also, I would like it to remove the correct amount of xp from the player in creative mode and only allow the repair if the player has enough xp even though they will be in creative mode. No commands would be needed and only one permission which would allow players to use the plugins. I have no huge time crunch on this but as soon as possible would be great, but I have a feeling this plugin would be hard to make. Thx and good luck with the plugin