How to fix Cast on Freeze / Energy on hit against frozen enemies

I accidentally posted this on general earlier, but here goes:

As of now the change was too drastic and made it completely unreliable.

In stead of it being "Cast on Freeze", change it so that while the enemy if frozen every hit with cold damage gains energy. So the initial hit that freezes the enemy gains energy just like it does now, but while the enemy is frozen every consecutive hit after that also gains energy.

Maybe something like this:
Hitting a frozen mob with any cold skill gives base 20 energy.
Depending of monster type you get a multiplier X (normal 1, magic 1.5, rare 2, boss 2.5)
You gain meta energy multiplier depending of your skills

Example scenarios
I hit a frozen normal mob with frostbolt, I gain 20 energy.
The normal mob has a multiplier of 1. I gain 20 energy per hit.
I have 100% in meta energy gain. I gain 40 energy per per hit while it is frozen.

I hit a frozen elite mob with frostbolt, I gain 20 energy.
The elite mob has a multiplier of 2. I gain 40 energy per hit.
I have 100% in meta energy gain. I gain 80 energy per hit while it is frozen.

I hit a frozen boss mob with frostbolt, I gain 20 energy.
The boss mob has a multiplier of 2.5. I gain 50 energy per hit
I have 100% in meta energy gain. I gain 100 energy per hit while it is frozen.



This way you can't simultaneously cast 10 comets, but depending of your build you can continuously cast them faster or slower depending of your build and mob density.

+1 --- subsequent hits against frozen targets should continue to bump the cast on freeze trigger at (perhaps?) a reduced rate

That would be a good solution to the current over-nerf. I stated in another thread that the cast on * skills are not all the same -- freeze happens far less than ignite or critical so this current blanket nerf has left freeze out in the cold (hah)