Mundo/Sejuani update ideas

Okay, so, with the tank update coming, this is a good time for me to get opinions on ideas I had for the two listed.

The first being Mundo. I personally don't feel that his theme of sadomasochistic behavior is really coming out too well. His E and R, for example, seem backwards. Masochism is deriving pleasure from your own pain, whereas sadism is getting it from others. So why does the ability that does damage Masochism, but the one that hurts yourself for a beneficial effect sadism? Honestly, those names should be switched first off. Secondly, I think the themes of his abilities can be better realized. Ult is fine under the name swap, but his E has room for thematic quality. For example, while it would likely make him unbelievably unkillable, perhaps adding a passive effect that he heals for a percentage of the damage he deals would make sense. Healing for causing pain.

Second is his Infected Cleaver; it doesn't really feel...infected? When I hear that, I think of it doing a decent chunk of damage, as it does, but then having a lingering effect afterwards. A DoT, a damage amp, or at the very least Grievous Wounds. If its infected, it should have more to it than just damage and a slow, IMO.

The second champ idea I had is for Sejuani. I believe her ultimate has room to be made into more of a skillshot than it already is, and reward good aim and timing. My idea is this: Sejuani throws her ice bola with great force in a chosen direction. Upon hitting an enemy champion, the bola drags them backwards before shattering, stunning the target and other nearby enemy units for X seconds, as well as dealing Y damage. If the bola does not hit an enemy champion, it will shatter at the end of its range, dealing reduced damage and stunning for .25 seconds in a smaller area.

Basically, by aiming carefully, Sejuani can use the frontline or whoever is in the way as a way to stun the back more readily. It also opens up more utility, such as using it to knock threats away from carries, flanking to knock targets into your own team, knocking people out of baron/dragon pit, so on. The tradeoff obviously being it loses much of its power when missed, but not so much that you just 100% waste the cooldown because you were off by a pixel.

I know this is a bit of a read, but I feel like this is a decent idea, and I'd love to hear feedback on it from the community. If its well received enough it may even wind up being used by Riot themselves, but if not, oh well. So, thoughts?