alright, first off, twinking is mainly for hunting down beginning newbs, so if you want to get lots of kills, go for lv 15 or below, I personally went with a lv 6 mage, its challenging but fun, only having 5 skill points. Your gonna need at least 1 mil in gold to get gear, and then some for pets. Your also gonna need a good guild, preferably one that has a lot of members, because ppl are ruthless, they gang, spot block, trash talk, and do rather nasty things. So you need some peeps to watch your back. For builds, it all depends on what kinda mage you wanna be, and what lv you are, I would go to different lvs and experiment, being a support mage or a Rambo mage on a mission. But twinking is fun, and don't be discouraged if you die, get back up and knock someone else down.