I think it would be cool if there is an magic based mod build around you xp level. You could start with enchanting an enchanting table. With an bit of luck getting the 'enchanter' enchant. That table will open yhe world of tear1 enchants.
Tear2 Enchanting can be established due preforming an 100 xp ritual. On this tear you can choose your own echants. Here hou can make the next tables to get to tear3
Tear3 enchanting is just an crafting recipe of 9 Enchanted tables created in tear2. All different enchants in an specific way. I. Tear 3 you ca create your own enchants for a verly heigh prize in resores and xp.
If someone would like to make this for me just contact me. I have some other idees on how i want to create this.
I think there is not jet an xp based mod. So i would be happy to see one coming