[SD/Modeling] Channel gathering energy towards unit

[Tsaras]

Is there any good effect that looks like a unit is gathering energy while casting a spell? I was thinking some energy-like particles that come towards the unit's chest while it is channeling to prepare a massive attack.

I have searched the model area but couldn't find something.

 

[Kuras2003]

You could do it Just like Blizzard and loop charm effect to make it Look like gathering energy