[build help] Spell totem ice spear build (newb)

Hi!

So i want to try to make a build (sort of) my own. The main idea is to summon 3 totems, each having 7 projectiles raping/freezing things.

Now i allready am lvling this and don't rlly see how i can get all these aura's to run later on. Having mana problems now at lvl34.

6L - Spell totem, Ice Spear, Faster casting, Cold pen, GMP(5L), crit hit dmg(6L)
4s (3L+1) - immortal call, increased dur, CWDT & Enduring cry
4L - Assassians mark, temporal chain, curse on hit, lvl 1 arc/lvl 1 ball lightning
4L - Wrath, HoI, Dicipline, BM
3L - Lightning warp, decreased dur, faster cast
3L - Zombies?

Items/Gems
Soul Mantle
Rain of Splinters

http://cb.poedb.tw/us/passive-skill-tree/AAAAAgUAAv4EBwceC2EOSBBYEMwRDxEtEZYUsBZvF1QYaho4HRQfAiKBJpUnLyoTLJwyNDWSNsU6WDrYOuE8LULDQ2NDyEShSVFMLU3jTq5PBFPUVUtVxlZKWAdY5VnzWitd8l5dYeJknWaeaPJwUnDVcU1xhXIPeC97IHyDfOWCHoKbg1-DzIPbg_OD94hCidOMNo2CjjyOZI9Gj_qQVZUElS6aO5rPm6GeoZ8BogCj8qZXp5SsmK4Sr2yvm7E2tvq3PsHFxq7R5NH91abYvdsL34Thc-Nq5CLr9ewY7DjtPPAf8NXyHfJF96b31_iT-tL-Cv6H_o8=

Hopefully you guys have some tips for me on what to look out for!