Actives: Stealth (set up the kill) Weakpoint Attack (damage steroid)
Passives: Ambush (extra 30% damage right after stealth) Backstab (stun if you land behind, which you will from stealth) Stealth Cloak (damage reduction for the getaway if your burst fails) Emergency Stealth (free panic button when low HP)
Playstyle: Hide, get in close, nuke them before they blink. If they live, you vanish again like a rat in the walls. Great for PvP hit-and-run, less efficient for PvE farming.