Hey, im new to the game and i am bugged by something.
The mist energy is divided by all knights you own, and you must choose wich one to play each day, wich saddens me a lot
As i got it by some NPC guy in haven mist energy is stored within the armor of the given knight and the armor can reproduce it by extracting it from the air by 100 every 24 hours.
I have 3 knights, does this mean i get 3 times the energy regen rate than a guy with only 1 knight in his account?
You may want to check the dedicated page on the wiki : http://wiki.spiralknights.com/Energy
Short answer : no. Having separate knights on the same account serve no real purpose for a single player.