How does the genie's mana collection work

There is a mana collection rating, but what does this rating do, how does it translate to how much mana is returned per hit?

1 Answer

Here's the exact math on genies for DD. The post comes to the following conclusions:

Genies scale exceedingly poorly and a perfect genie will not pass 350 mana returned.

5,000 damage per swing/shot is more than enough to cap the mana return from a genie, as the base damage goes up, the damage requirement to cap the mana goes down.