Ivern Conundrum
So i guess I'll just start by saying that Ivern is fun to play at times but feels a bit off. He is a jungler with decent but not amazing clear and seems designed to be a counter jungler... sadly the only benefit he has is that he can freely take the enemies second buff if no one on the enemy team tries to stop him, but that just leaves him open to be counter jungled by the enemy jungler after there initial buff. He feels like he should be built like a support tank, but lacks any real substance as a tank in teamfights if you don't use bush mechanics properly to cancel autos. If you look at his scaling he scales well but that would mean you should build him for dmg which is unreliable since his dmg is reliant on hitting a q which is slow and easy to dodge, as well as the fact that the rest of the kits dmg is also unreliable. Which means you go the middle ground which makes him not the best at either but the best overall for what he can be at the moment. This build wouldn't be a problem if it didn't feel like it wasn't a worthwhile pick. Zac, Sejuani, and even moakai do his job better build this way and are all decently fun to play maybe excluding moakai.
I feel like he could be fixed if you made a few changes to make him have a bit more of an identity with his build. I love having multiple build options. In season for AD jg Malz was my main jungler. But with ivern he doesn't even have a main build every one of the builds is equally unsatisfying for varying reasons.
Some Ideas:
HIs passive could bring back the old smite cooldown reduction from smiting a camp in your jungle to make his clear slightly better.
The q is honestly pretty good since it has a lot of innate power from the gap close for your team.
the w is fine as well even if it is odd as hell. (a good kind of odd though)
the e needs a higher base value if he is meant to be a tank, or more reliable dmg if he should be a mage.
the ult needs better attack speed and slightly lower dmg if he is meant to be a mage imo or if he is meant to be a tank maybe make the defenses scale with your defenses