Elemental Equilibrium Tanky Aoe Fire/ice Templar, advice please

I hv been working on this EE build for some time.

Basically its meant to be able to stand arnd enemies and tank and deal dmg.

AOE skills used:

Ice nova and Molten Shell
Enduring cry and discharge combo

Single target skills used:
Alternating between Glacial hammer and infernal blow so as to proc the debuff from EE

Auras used:
Purity and clarity.

How is it survivable:
With a hp pool by gathering health nodes from where i can, i hope its possible for this build to tank some of the dmg plus the increase armour given by MS will be able to protect me from physical dps. A high hp pool also is good for chaos dmg

Purity is taken in order to have high resis against elemental dmg.

Here is the link to the passive skill tree that i hv done up, i would be arnd lvl 60 with this skill tree, pls advice on whether this build will work and if not how to better it. Thank You.

http://www.pathofexile.com/passive-skill-tree/AAAAAgUBAnEEBwSzBVsQaRRNF1QZLho4HRQfAiKBJ-0pTyqNLR8t0jCXMok2xTbYOYo62DwFRtdMs1BQVElXDVfiWGNZ813GXz9gbWaeah5tGXKpd-V82X1TgpuLjIzPjjyPRpBVkc6XhZitna6f36IApwinhKgYrKq2hrndwBrG2MjM2CTZYd3z4XPnUuw47FXtIO8O73zvj_Af8WzyL_Pd9kj60g==