Tje battle arene part is just not true, you cand find so mutch variety in it! , the prof of that is my playstyle, i dont make a build thinking about AI setting, i make my PvP build's very enjoyable to play, i'm thinking ahead, when DQ2 comes, O BOY , i feel like alot people will have troubles on PvP, i use bleed as my main source of DMG since season 1, nobody in hes perfect mind will use that in this meta, if you play this game as long as i, you will understand that one immortal is not = to the other, settings are put very differently by players, same for other tipes of builds, if you go to arene rules, dont say that is ilegal to copy other players our to use just your skills class, get good at the game and you will see how rong you are!
You just get a really bad match up, it hapens some times dont worry! , is true that immortals builds are raising up , for new players must suck to play vs that cancer but trust me, if you know how to BEAT them, gg ez!!, for me is just like that, i dont go for ranked no more, i use battle arene to farm chest, thats all, i go to mythic div2, lose intentionally to get there and go all the way up to eternal div1 and do all over again !
What league and division are you?
I go there and see whats up ok?