http://breezewiki.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion/minecraft/wiki/Experience
However, it is easier to get to 30 levels than it was before 12w22a . 1.4.2 12w38a Leveling up now makes a twinkly bell sound , similar to, but longer than the experience orb sound. 12w39a Experience levels can now be used in commands by typing, for example, @a[lm=4,l=7], choosing everyone between 4 and 7 levels inclusive. This is normally used in a command block . 12w41a Added anvils , which allows for the repairing and combining of items , at the cost of experience levels.