Support / Aura Templar - would love feedback

My idea of my favorite position in a team would be Support. It's always what fit me best because I could just do my thing and usually not worry about getting the best items. I could give everything to my teammates. My build is more about disabling enemies and protecting allies then doing any damage. That decoy totem saving one ally from losing 15% is better than doing 10k DPS for me. Let me be that beast for you, put other things in place of your auras. Maybe Item Quanity and Rarity? then we'll both feel great. :)

http://www.pathofexile.com/passive-skill-tree/AAAAAgUBAP0FWwx9EH8TWxSwFVAWbxdQGS4nCyftKPospzLRM1Y3RzlSOjA8LUVHRZ1GcUwtTP9N2E5tVcZV1lgHWfNaK16fYpVk52useqp7B3xLfLuBb4IehMSK5Ix2j0aVIJrgm6Gb7J48o_KnCKyYrKqvbLJwt6W4k7ndvDfEFcT2xYrGnsauz2XQ0NSP2t3bC-dj6-7sGe8O8i_yRfPd99f6LvsJ_c_-Cv5J_r8=

Everyone needs a defense, and you may think I am lacking. My defenses are totems, and teammates. Just like a good support, I should never be in the front of a team fight. I think downsides of my build are:

-Not enough life (everyone has this problem).

-Mana Regeneration. I have 80% increased mana, but I only have one 40% increased mana regen. I'm guessing Clarity, and good mana regen rolls on gear (Wand/etc).

-Low dex, so I won't be able to use quite a few dexterity gems unless I magically find a Astramentis Amulet. (Yeah right lol)

BUMP because it fell off first page :)