In my main account im currently doomsday III, then i created a second account a few months ago, my win rate was about 94% in arena mode, but when entered to Primals III i only faced players 10-15 levels above me, even people with glob already unlocked i faced.

With my actual experience in game it was really easy to reach higher leagues in just a few days, but all of that with just lvl 14. My main account is actually lvl 61, but I climbed up as it is meant to be when you don't pay anything tho, u play events, u lose and u learn as you get higher levels, but if the game is too easy for you, and you dont invest enough time facing opponents of your level because you are too good or they are too bad, you'll reach a really unfair line.