Just a couple of notes, going off your skill tree:
- Max your Shadow Armor - it is invaluable, regardless of what sin build you play.
- If you're purely PVE, don't max Hide, or open Hiding Exceed - those skill points will be more useful elsewhere.
- Open at least 1 level of Shadow Assault (stun); coupled with Armor, it'll Buy you a comfortable period of time to pot/ drop heal pet/ dps without receiving damage
- Unpopular/Uncommon opinion, but I'd recommend getting Dagger Throw lvl 1 for luring targets to you/ separating a target from aggressive mobs for easier and safer kills