Mu Mastery- Hero??

I really am confused on what to do in order to get Mu Mastery for my brute or how I guess you could say. I am level 50. I don't want the hero epic power pool choice. Is there a step by step guide of some sort that will help me on what to do and how to get it? I need to respec my build and get Mu Mastery but it wasn't available to me on hero side. I made this character as a praetorian and got to level 20 and came to paragon. Thanks!

You'll need to go through a full alignment switch to Vigilante and then Villain.

Once you're a Villain, you'll need to speak with the Arbiter standing by the door to Recluse's tower in Grandville. He'll refer you to a Patron of your choice and once you've completed their first story arc you'll be able to select Patron Pools when you respec.

Also completing the First Patron Arc also grants a respec, so you don't need to worry about wasting one, once you get the pools unlocked.

Thank you so much!

I did it with my Elec/Rad troller. Went hero to villain, did the patron arc, then went villain to Hero. Its very time consuming, but if you happen to be an altaholic, you can just log in every three days and autocomplete tip missions to move it along. The Morality mission and a few of the patrons missions, you'll have to actually do, tho. Easy to find or make a tip mission team. People are always willing to come along for that action.