Limit break allows us to level a hero past level 100 in 5 level increments, up to a maximum of level 125
This should be done based on your focus in game. If you were focusing on PvE content, then you should work on your PvE heroes first, otherwise, you should work on your PvP heroes first.
Doppleganger queens can only be obtained from special hire within the premium hire screen, or their hire ticket can be exchanged from Camillan using 1000 doppelganger queen essence from opening arena reward chests.
The following table shows the total materials needed for limit break: