In this event, Mad Prince Levlar has a chance to drop XP Kits that range from 100 XP to 2,000 XP - in addition to the tokens, some gold, and crafting...
You will get a lot of XP for running the event map and there are good XP kit drops from the miniboss and the two boss monsters - so run with the pet...
They need to deal with Common, Rare, and Epic gears instead. Forming another inventory system mainly for vanities will be another headache for those...