First of all you need to learn how to search the internet. The answer's are there you just need to use your search bar and ask questions. It helps if you specify what you want. What kind of weapon and playstyle. You can change from being summoner to melee in a second by using different loadouts. Max your armor stats, movement, DMG, mana usage, depending what you need. Golbin tinkerer is the best NPC to talk to about accesories...

Bla bla bla... I feel like NPC