It would be cool if Mist Energy Restoration Trinket/Machine was created to reduce time you would wait for your Mist Energy to recharge. It would cut the 13.2 minutes for each unit of energy in half. So you don't have to wait the 22 hours to get 100 mist energy.

If it were a Trinket, it would last 30 days.

This Machine is carried around as a weapon so a Weapon Slot can be opened up to carry it around( Or you can just carry it in your already open weapon slots). When it is equipped the Machine is active logged in and out.