Mordekaiser is way too much of a bully in lane
Play a carry or a bruiser into him, lose at all levels due to base damages and passive, stolen stats during ult and having to commit when he wants you to with his ult.
Tanks die way too easily to him as well given his % pen on W and the dot and % max health nature of his aoe passive.
I was a morde main before his rework, and liked how much of a risk/reward he was. He had to do certain things in certain ways to be effective at his role, and he traded high damage for very low mobility.
This reworked morde has much better mobility in the passive ms, the aoe grab, and ultimately in being able to trap the enemy in an arena. But his base damages and scaling are still insane like old morde, and his abilities dont have health costs like before.
After the initial spam after his release, I straight up quit playing the champ because there was no fun in playing him, no skill ceiling to work towards, and no variety in his playstyle. And killing enemies and hard carrying was just too easy and boring. There was no engagement in the gameplay.
I played chogath into him today and started mr rune. First back I picked up a negatron cloak. Cho's base stats before feast stacks is low, so im not saying i was a magic damage tank at this point, but with his shield and everything, he killed me easily in a 1v1 duel. I got qwe all off on him, and was stabbing away with all 3 E charges before he heals all the damage to 75% of his hp, while im waiting for my cooldowns to come back up and just autoing him, im dead way before I am near any threshhold to kill him with R.
I mean, level 6 1v1 all in vs a champ with just starter items vs chogath with a magic rune and a full negatron cloak, and im just forced to duel him and, despite landing everything, die while his hp remains over 75% is fucking stupid and ridiculous.
His passive needs to be toned down to like half its strength its whats making him broken in lane now. He can heal up poke with his W too easily, and any short trade u try to make becomes an extended trade with his ms and aoe on his passive. And early on pretty much nobody survives extended trades with him, not by a long mile, and the passive is what puts all the pressure.
At least gate the damned passive behind a cooldown so you can bait it, disengage, and then reengage or at least farm safely for a few seconds while he loses a large amount of his pressure. Resourcesless with self heal and shield, this guy is just too safe and confident in lane not because of skill but because of being a pure statball. He can just keep spamming spells without recourse, and when he lands a grab you better believe, no matter who you are playing, your going to lose more than 60% of your health just from that one trade, while he loses 25% and has the ability to heal it back up without potions or backing.
: Ressourceless, she have been a problem for a long time because of her numbers. Not having mana cost make her a powerful lane bully because she can spam her combo. We could add mana cost to make her more balanced instead of destroying her numbers.
: Yasuo always have been a problem. He spams his tornado and his E which is extremely annoying. But i don't think we could add mana cost because he spams his Q pretty often and his E too. He would get oom in less than 2s.
: Garen is a easy champ made for beginners. It's make sense to not have mana cost because Garen isn't really a problem.
: Katarina would be weak with mana cost because she wouldn't be able to use her reset passive. It's also make sense that she don't have mana cost.
: His spamming Q can be annoying. But i think he isn't that much of an issue so i think he don't need mana cost.
: Powerful lane bully. Annoying too. But mana cost wouldn't be the solution because he needs to poke to have his Mega Gnar form. Also it's would mean he needs to save enough mana to use his ulti in mega gnar form which would make him extremely complicated to play.
: Highest win rate in top lane. Ofc his numbers are too strong but his manaless kit don't help to make him less a threat. I think it's because it's would give too much informations because he has 2 healths bar but he could have mana cost.
: I never liked the fact that he don't have mana cost. Renekton is way too powerful as a lane bully to not consider some mana cost on his spells. I mean when you compare him to Darius or Jayce... Both are annoying and horrible to deal with but Renekton is another level of stupidity when it's come to dmg and no mana cost. This dude litterally outrade you with a non-interactive gameplay but he also don't have mana cost which means he can spam his spells like he wants.
I think they didn't put a mana bar because of his rage bar but for me, it's not a good reason. He should have mana cost.
: Tryndramere is a problem but that mostly his ultimate and his critic chances and not really his 0 mana cost. But his spamming E can be extremely annoying too. I think he should have some mana cost but low mana cost. I mean something like 30 on E, 40 on Q. Also mana would prevent him from using R if he don't save enough mana and would make his ulti less a problem.
: Unfair, i don't see why Vladimir don't have mana cost. There is no reason that could explain this. Let's compare Vladimir to Kayle. They both scale lategame. Kayle has a very weak early game and until lvl 11, she must survive. Now with the nerfs, she also needs a lot of stuff because reaching lvl 11 won't change many things if you are too behind. To survive, you will likely spam your spells to farm and using mana which is one of Kayle big weakness. She has insane mana cost.
: Zac isn't a big issue to add mana on his spells. He is melee, he is a tank and i think it's like Mundo. He isn't that much of a problem to need mana cost. Honestly, i'm fine with Zac not having mana cost or energy cost.
makes him pretty much worthless, cause he can't beat you if he cant 1v1 you.
for more AOE damage, amplified by constant 
procs and magic pen.
