I’d go for ninja. He is fast, has piercing, good dps, and his ability is basically a d-bow but without piercing. t12 katana is only like 1-3 def and is amazing even at 0/8. Some people say you need doku to play ninja, but those people are idiots as even t10 is amazing at what it does.
If not ninja then assassin. He is fairly fast and can wrack up a lot of damage from a long distance. Throw two t5 venoms and that’s o2 SB right there easy peasy. Even without a pet or max mana you can get 2 venoms out if you have an expo or mp ring.
Or you could ignore these suggestions and just play wizard/sword like every other noob who sucks at the game so badly they have to play the easy mode classes.