The stats you should (emphasise on should not must) have at level 16 would be pure dex for the insane damage / criticals. By then you would have saved enough money for some decent equipments that gives you STR and DEX which would cover for your puny health and further increases your damage. With so much DEX you would have a pretty high dodge rate too. Usually around 20 to 25 percent. It's going be your best friend. If you are concerned about deaths at the early part of the game you could add some STR and respec (5 platinium) later on when you get your equipments. Skills wise concentrate on Shadow Piercer, Aimed Shot and Shadow Veil. For pets, you could use those that gives you DEX, criticals and also mana regen (It's a lifesaver especially with that puny mana pool Rogues have). For example, Horton would be a very good choice. This should be about it. Remember to take my 'guide' with a pinch of salt. It's meant to be a reference for you. Have fun :3