Lvl 65 Flameblast Witch with 15 Points needs help

my gear

lvl 65
15 spare points.

I dont have any problems ATM, but i dont know where to use my points.
More Life ? Fire Nodes ?

thanks


http://www.pathofexile.com/passive-skill-tree/AAAAAgMAAnEC4wSzBVsHYwelCPQUTRVQFm8ZhRo4GmwfAiSqKU8snDGINsU26TwFPV9G10kbSbJSU1WuVcZXK13GYG1zU3kDeuZ9U4IQgpuDOIdli4yPRpBVl5WX9JwtnYCdrp_fogCnCKeEr7e2hsBUz2XQ0NR82CTa3d3z37DjauQi5oHnauw473zwH_Pd

http://www.pathofexile.com/passive-skill-tree/AAAAAgMBAnEC4wSzBVsHYwelCPQUTRVQFm8ZhRo4GmwfAiSqKU8snDGINsU26TwFPV9G10kbSbJSU1WuVcZXK13GYG1zU3kDeuZ9U4IQgpuDOIdli4yPRpBVl5WX9JwtnYCf36IApwinhK-3tobAVM9l0NDUfNgk2t3d89-w42rkIuaB52rsOO988B_z3frScH2plRoyUWAdFEw1KMXzvsWKr2zp1Qz3PC13464-

You can start going for block nodes, and go towards the life/block nodes in the marauder area.

My Flameblaster uses block and spell block to be able to tank damage while channeling the 1.5 seconds (instead of 3, because of faster casting) to get all 10 stacks. I also use aura nodes and EB nodes to be able to afford the cost of a high cost flameblast channeling that fast.

That is pretty much exactly what i figured what my only choice was.
There arent any more AoE nodes and HP nodes and what i need is to be able to tank while channeling.
So only armor or block are the choices.

The question is, should you use Flameblast max channel + tank OR respec to Flameblast BURNING instead of the spike approach.