What is your cumulative log in days?
Tenebris is the most important by far. Evolve it, unlock the SS and use any legendary potions you get on it to get it up to +6. It will win you most of PvE by itself then.
EDIT: Just read Tanbeer’s post (the first reply here). Totally agree with him going Tenebris, Stratustrike, Wraithhost.
Sadly i used all three leg potion i had on emeraldeus but ye thxfor the advice