This is in google doc format since it's much easier for me and you. Feedback would be appreciated!
Outreach bonus: https://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/9ZFNzOEd-champion-idea-magnifico-the-puppet-master?comment=0001
Void Kaiju2 votesI prefer to only comment on the kit of a champion, because lore can always be ironed out whenever, but for something to fit into the game the kit needs to be done right. I will say it is hard to make judgements on the kit without knowing his cooldowns. Only his passive and Q have them. Morgan has an obscene amount of up front burst. His passive means that you lose effectively 50-75% of your health right away, the movement empowered auto on his W alone would likely be enough to either instakill a squishy or leave them one auto from death, plus it slows, plus his Q either punishes you heavily for staying near him with MORE high bases and scalings if he gets the jump on you or slows you down so heavily you have no chance to escape and he just chases you down with auto attacks.
You say he has no escapes lategame so he would want to build tanky. I don't think he would ever want to shift to anything further than maybe a ga/ other resist item. His Q and W are both aoe nukes that have slows attached. He would be able to make his way around the map rapidly with the coils so his global presence would be enormous, moreso than reksai with her old ulti if he just plopped a coil down at his fountain.
The passive is fundamentally unhealthy. Either the enemy wards the crap out of everything and the passive is useless, or they are unaware and he just squats in a brush while they get set up to lose the majority of their health. In a vacuum the passive isn't gross due to the delay on its damage. But combined with his crazy up front burst it means that no amount of healing or shielding is going to save you if he has a full stack passive on you and presses q and w. It's like seeing a karthus ult when you're low except you're not low and there's still not much you can do to stop it.
It also encourages the player to not actually play the game, instead
Can Morgan move while channeling Q?
Does his coil spell have a duration? Or a limit to how many he can place on the map? That much mobility alone would need to consume a lot of power budget.
His ult should just do the %damage itself rather than do all this interaction with his passive.
Gushis1 votesAll his abilities have cooldowns...
You are assuming he has his passive stacked to the max for some reason. It can be stacked by sitting in a bush which is very easy to counter, or using coils, which is harder to counter but still very possible. Also, if he uses it, it's nor burst and you do not lose that health right away. Late game the only escape he has is W active. I wouldn't really call W and Q "nukes," that's just a way to make everything sound op. They don't do obscene damage, they don't. If the enemy team simply searches for the coils ot has the jungle warded it's quite easy to negate his map pressure. Plus, thst mobility isn't really used in a fight so yes, he has only W for mobility. The passive would be useless if the enemies destroy coils and ward well, yes. Also, you realize if you health ticking down and you get healed you survive...
Is is not a channel so he can move.
I should probably put a duration on it.
His ult passive interaction means he needs to AA to proc it, not complicated
Void Kaiju2 votesIn theory you can deny his generator-based mobility, but even rek'sai tunnels show up on the map and are often ignored because there isn't an opportune moment to go destroy them. Players resent being forced to constantly partake in a minigame to control a champs effectiveness, look at the response to skarner spires.
What I mean by cooldowns is at the time of reading I couldn't find the cooldown for that spell on the doc, which made proper power assessment difficult.
I said he effectively does that much damage because if I'm reading correctly the damage he does is transferred to the remaining, non-black health. He crushes the health you have left with high, up-front burst and either gets away or is left in this weird spot where he can't touch your remaining health because it's all black health and you kill him. It would be very difficult to dodge the damage from his q since his W blinks him to you with large burst and he can then follow you while using his Q. The situation is he would either one-sidedly burst you down or start losing and blink back out, probably to a nearby generator and essentially rek'sai ult to safety.
Once again, his passive either does very very little or if he chills in a nearby brush for a while it does far too much. If you want to keep it I'd suggest toning down the highs and bumping up the lows at the very least. Also take another pass at how the black health works. Does he start to cut into it if he gets through your remaining red health? I was operating under the assumption that the DoT was preset to be a percentage of your maximum health, meaning if he got you decently below that, like say to 20% while you have 50% max hp damage ticking on you, you would need to heal for over 30% of your maximum health in order to survive.
Gushis1 votesYou're right on the first part. In my mind i was thinking he would have a limit on how many he can have but I didn't write it which i should
The black healtg is fiddly to explain, I do need to do better at it. Here it how it works now (may not bw what is on the doc): the black health will only act on the HP you have. So if you have 20% HP and he hits you with a 50% HP black health, it will only do 20% of your HP even if you heal from the initial cast. Your black health will only be damaged if all your normal health is gone. Yes, his damage ia difficult to evade, but if you have your team nearby it's no issue since his w active must be cast within 1 second of the passive proc, making Morgan immobile basically if he chooses to stay.
Good points all around, I need to do a fair amount of better explaining. Thanks!
KelikZenair1 votesWhats the range of the passive? Not global i hope
Gushis1 votesHaha, I should specify that (it only says "nearby" now). It's not global lol, think Ryze level 1 ult.
FloRaider421 votesBasics: Isn't "Morgen" german for tomorrow? Besides it's far to close to 
for my taste.
) or why we should care about him as a champion, seeing as we already have people fighting for a better Zaun (
).Passive: Seems rather unfun for both parties. It encourages you to just wait in the bush for the enemy to amass black health (which can take up to 50 seconds) and then deals 50-75% Max HP damage to the enemy champion, which is frankly absurd. Especially jarring is the fact that it deals % Max HP damage, since an enemy on low health can effectively be killed with one AA as far as I am understand.
Q: Unlike say Illaoi where fight or flight are both acceptable reactions to her E depending on scenario, this ability screws you over either way. Fleeing is made unappealing by virtue of the large slow, but fighting also is bad due to the AOE damage and the passive potentially having already chipped your health down to abmyssal levels (made even worse by R).
W: Remedies the passives only real problem of needing to get an AA in, which would be fine if not for aforementioned problems. The active is really similiar to LB.
E: The range seems really high, but is somewhat remedied with the set up time. Intresting ability overall. That said it seems too safe as an escape tool due to immunity, range and the inability to stop it (no channel/ no cancel).
R: With all three previous abilities being lightning themed it seems odd for the Ulimate to be toxic gas. Wouldn't even say that the Passive uses toxic gas due to the black health and being tied to vision seeming more arcane or demon, than poison themed. Due to the increase in Qs range and the bonus MS enemies have a really hard time escaping this poison cloud.
FloRaider out 
Gushis1 votesThanks for the review! Morgen is tomorrow in German but Morgan is a name
Well, he's not fighting for the better of Zaun per se, it depends who you ask. He is all about travelling through sewers and cables, destroying and killing everything basically. I would by no means consider him a guardian. Whereas Ekko is all about making Zaun a better place, Morgan is about destroying and (maybe) starting anew.
Passive takes a fair amount of good stalking. Really, without good use of the E, stacking it to a high amout would not be possible since you need to see them, they not you, and you need to keep them in range. This has many ways to play around it, and satisfies Morgan for playing well around his E. Sure, the potential is big, but hard to accomplish. Hence, the real interaction and fun (counterplay) comes in destroying his E so he cant stalk you, warding the jungle (good anyways), and watching where he is on the map (good anyways). You just can't autopilot against him.
Q: well, not exactly. If you think you can escape into your team or stand your ground, you try to escape its range. If you don't have anywhere to go, well, you're going to take the damage. It's not suppoaed to be pleasent lol
W: fair point on being similar to leblanc. Keep in mind he can W in, Q, return to his W for a team slow.
E it's strong, sure, and if used well can make the passive work really well
R: passive was poison themed themed.
Tge lightning is all about travelling the cables of Zaun
Thanks for the review again!
FloRaider421 votesDoesn't the passive work with ward vision? Can you preemtively exit E, it sounded like you couldn't.
Gushis1 votesWell, for the passive to work Morgan needs to have vision of the enemy while the enemy has no vision of him, and the enemy needs to be within range
You cannot preemtively exit E, why do you ask? (Well, it actually CAN be stopped. If one coil is destroyed, Morgan zaps to the opposite coil. If both are destroyed, he falls at his current location)