Assassin Questions/Any sin builds?

I guess let's just start with my biggest question-Is there any assassin build that's viable BESIDES trapsin? Also, any sin guides/builds out there to get me started? Trapsin or otherwise.

trapsin with nats set is a good starter right now. Fire and lightning both work well. Kicksins and shuriken flip sins both work as well. I havent really tried the martial arts tree. But you could try some of those as well.