Ideas for a more true Morde rework

As we've seen with Morde's recent rework, Riot has missed the mark on what make's Morde who he is. Morde is supposed to be a menacing paladin of pain with short to mid range spells that make any non long range fight a nightmare. With these suggestions, they might fix some issues facing Morde's kit.

1. Passive: The changes to his passive are actually better for him and improve his kit so there's no problem with it

2.His Q: Morde's is supposed to feel like you being smacked by a force of destruction and power so I think they should bring back the AOE aspect but instead of the extra damage on an isolated target it should stun.

3. His W: Begin by making it a self cast again but when active, Morde's spells heal him for a small amount of the damage they deal. Morde's main issue with his kit is that he has no natural sustain for being a health based champ which gimps him hard until he's able to grab some spell vamp. Most health champs have forms of sustain to compensate for their kits so it only seems fair Morde gets some way to keep him alive.

4. His E: It doesn't make sense why Riot would beat down his bread and butter ability but what you could do is that you can have Morde's E scale with health along with AP to make him more juggernaut oriented. If this gets out of hand you can make it so it only takes from bonus health or make it completely AP again with better ratios than the butchered ones they have now.

5. His ult: Now this one is tricky since his ult is kind of considered broken. The power to ult the ADC and then burst them down to make it a 6v4 can be overwhelming considering you don't have to do well yourself to make this work. So with the changes it would that it keeps the first part of the old ult without the dragon stuff but when you ult and kill a champion, what it would do is that it puts you into an impowered state like it makes Mord a true lich king of some sort. It could give extra effects on his abilities or give him a massive power spike. Another thing too is that he can ult allies that'll give them a certain amount of magic damage either on autos or abilities(might seem like that autos are the best way to go) and maybe bonus hp but if the ally dies, it'll still send him into that impowered state.

Some of these changes seem dramatic and over powering , especially when tossed together, so I'm interested in seeing what you guys think can make this work or if you have an idea of what should be done to fix him. Bottom line here is that we want the master of metal to rise up again and keep rocking on.

Thank you for your consideration.

Edit: I know the list numbers are wonky, sorry for that I'm on mobile and can't seem to fix it :/