Any alternate to Insight ?

Hi, I’m mostly playing casters, with

Teleport (lightning sorc, foh).
I don t see how it would be possible to play without Insight on my merc, unless drinking a potion every 5seconds.
Is there any alternate gear that could provide enough mana regeneration?

Thank you for any suggestion

my sorc, light, cold, fire, with native 1400~1500 mana, buffed to ~2000, can self sustain mana consumption without Insight, unless under heavy fire in which case

Energy Shield will need pot to support.

you will need gears that can bump max mana and mana regen up. for instance,

Frostburn, SOJ or

Arachnid Mesh, gear in that nature. Of course, 1 point in

Warmth.

do not know available options for FoH.

I started this ladder with a CL Sorc, and I ran into the same problem. Even with Level 17

Meditation I was drinking pots like an idiot.

There are some ways to increase manareg, but none of them is working for a CL sorc.

Maxing

Warmth: Since CL sorc needs to put 100 pts into lightning tree, theres not much left over.
Increasing Manapool:

Frostburn, CTA, maxing energy etc. Regeneration increases with higher mana pool, but again, as CL sorc you have to go the vitality route, not much mana to be expected (I ended up with around 1200 life and 300 mana). Due to higher breakpoints, you need GG gear to replace

Magefist with

Frostburn to reach the 117 FCR.
Since self-wielding Infinity is no good choice for CL, I need to keep that Insight merc or give him an Infinity. No way.

In the end, I respecced to

Nova, and holy moly, that's one difference. No mana problems anymore, fully synergized ES and killspeed increased by 300%. I didn't change a single thing on my gear, actually working on a self wield Infinity (using Crescent Moon and Spirit at the moment).

CL sorc sucks.

Same is for FoH Pala. Merc is

Prayer merc with Cure and Insight. I just leave it like that, because its BiS.