Ok guys i'm thinking of going with this build: SB, Spear, Reserve, Avatar, Assault and Mantle. Any one has any tips, suggestions or advice to provide?
Ammm yeah... A Pure Sin is the best Sin.
You will need Grapple xD.
¿An advice?... Well, Sin is not the best character for PvE, so... Take care.
Faction: Steel / Shadow
If you want to go Assassin, I would recommend doing a hybrid between shadowblade and Wraith. Wraith will help you level more easily, Demonic Counter and Scapegoat for protection. Then you have demon-sucking that will give you 200k+ mana restore after every kill if you set the Angel Baby right. (I think IJ did a guide on this).
Then have your strongest stances on first/common using shadowblade, very easy to train.