He has been consistently the highest winrate jungler in the game for around 5 patches now going on 6 with next patch on the way with no Ivern nerfs in sight. It’s not like he is even only overperforming in one elo bracket. Starting at gold+ he basically is tied for highest winrate with Briar (she is being nerfed again). His pick rate is obviously low, especially in lower MMR, but that shouldn’t mean a 55% winrate champ with almost zero weaknesses should just be allowed in the game.
He was already performing well before the jungle changes. Surprise surprise, a champion that kills camps at a fixed rate without having to even be present gains a lot of power from a change that increases camp time to kill for every other champion. So currently his early game agency is virtually unmatched, he gets just as much if not more farm than other junglers, he’s basically unkillable and outskirmishes champions building full damage. He can literally stand still and shield himself while standing in a bush and 1v1 me as Kayn with a dirk. He’s strong mid game. The only way to win versus Ivern is go super later game and hope you have enough damage to one shot him or his teammates through shields. Most games don’t go past 30 minutes and his winrate doesn’t drop to 50% until 40 minutes. This doesn’t seem like reasonable counterplay.
He’s ridiculously strong, but he’s not “in your face” strong. Briar one shotting 3 people ina frenzy? You can see the champion being strong and assume she’s overtuned. Enemy Shaco doesn’t have any kills because not only does Ivern show up to lanes before him, but he also adds a camp to his CS advantage, people claim jg diff and blame the player. Ivern doesn’t feel op to other players and therefore they don’t complain about it. It’s similar to how fiddle used to full clear from level 1 AND take the opponent’s gromp/krugs before they could get there. He would clear ridiculously fast and people would claim jg diff claiming that fiddle would “perma gank” while out CSing you. Unless a Rioter gets a series of bad games vs a bad Ivern who still wins while playing like shit, I don’t think he’s going to get nerfed.
On the brightside, if you wanted mastery 5 on him, nows the right time to learn his clear and spam him.