I don't know the ring, amu, gloves etc., but attack mages DO own. I don't know about high levels but at least until level50 they'll be really good. It is something worth trying. Don't put any into defense/charm magic skill, just attack. Keep an extra staff with "+charm skill" so you can summon stuff with that instead of putting skill points into the charm skill. That's what I did and it works out great 
Do you have colossus boots on or just half plate?
