So my supernatural main is at 20, I believe, and I picked up the last talent I absolutely had to have. I've got a nice cone AoE (Venomous Breath), a decent ranged attack (Lash), a pet that helps me out sometimes (Summon Animals), an aura that makes me happy (the fire one), an awesome passive defensive talent (Regeneration), and a good block enhancement (Ebon Void).
I HAVE NO CLUE WHERE TO GO FROM HERE!
I can't think of a single talent I really need. Should I pick up another AoE? Venomous Breath is limited to 3 targets. A nice melee hole-stomper? I just can't think of any advantage to a melee talent when a ranged attack can be used at melee distance. Some kind of healing talent? I have yet to find myself in a situation where blocking doesn't allow me to heal up as much as I need, due to Regeneration and Ebon Void. Crowd control? I haven't needed it yet, and I'm really not terribly interested in PvP. A offensive passive slotted talent? I love regeneration so much I don't think I'll ever want to run anything else.
And then there's the issue of stats. I have no idea what to stack. I've been sticking mostly with CON and REC, but INT and END are also fairly useful for me.
I'd go with an oh-sh1t/get-the-hell-offa-me power. Perhaps a force one that knocks back everyone around you. Or maybe a debuff or self-buff just for boss battles or large groups. Or CC. I'm sure it comes in handy occasionally.