This is good for enc. You have to do at least 5 dmg when using a charmed pet to get xp from a mob you and pet are fighting. This uses no mana and saves slots for more important spells. Target mob, click on band, and you have your 5 dmg.
A clicky invis is also great. Your mob is rooted close to dead, your pet is almost dead, and when it dies, you get no xp from him. Click invis, no mana cost and your pet is no longer your pet. Kill him, get the xp, then kill the mob, more xp.
When i charm solo in PoN after about 2 fights with one pet i use my boots to invis to breck charm then mez then go find a new pet use this ring to break mez so that you dont cause a butt load of agro whit break and if its rooted there is lees of a chance root being broke
After looking at the other bands where people say that "can be used in inventory" I bought this one. Guess what? Only the class listed can use it. Oh well, at least I only spent 25p on this gift to the next enchanter I find.