Maybe he is not op but he definitly is highest tier and shares spot for best hero atm with orphea, don’t think this is a question. Compare him to old tanks like ETC, he is like five times as beefy and has sleep and stun in mass, plus he suprisingly deals a ton of damage.
Same with orphea, what mage on earth has that amount of self sustain on top of incredible damage, making her a valuable pick in every situation…
Some conspiracy theorist claim that it is part of blizz’ buisness model to make new released heroes overpowered so they will be bought more often but shame on everyone who thinks that!