After reading the forum and checking out wiki, i came up with an idea of my ''set'' for T3 content
Armor - Azure Guardian (good normal/piercing def.) http://wiki.spiralknights.com/Azure_Guardian_Armor
Helmet - Devine Veil (good elem/shadow def + fire/shock resist) http://wiki.spiralknights.com/Divine_Veil
Shield - Aegis (good normal/piercing def.) http://wiki.spiralknights.com/Aegis
Weapon 1 - Levi (very good dps imo and handy charged attack)
Weapon 2 - Devine Avenger (damage spil up between elem and normal and BOTH high)
PS: please people, dont advise me wolver series! i just don like 'em)
your armor and shield are to change if you are going for T3 lol in T3 there isn't normal damage dealing mobs anymore. the weapons are good, though you should try to buy a weapon slot and take another type of damage, that can always help :p
for the wolver serie, well you don't have to but the skolver set is a great all-rounder and the vog cub is among the bests for vanaduke. of course there are others sets too, the fallen armor for vanaduke is an example. try to roam a little more on the forum there are many threads talking about those. my advice would be to go for one of the wolver lines and use your costume slot xD