Strongest champion in the game (Lore wise)
I was wondering what everyone thought in regards to who is the strongest? We've seen it stated that Jax is, and he welcomes his handicap with his signature lamp post (and confusingly he has a Halberd in one of his skins). Other cited champions for strongest are Nasus and Renekton, as well as Fiddlesticks and Nocturne. In my opinion I believe Malzahar to be the strongest, he's the envoy of the Void, if he were to channel the full might of the Void, shit would get real extremely fast.
However, with Riots recent butchering of lore it's hard to tell much, It really pissed me off that they would be willing to shit on their characters, their own creations, out of greed (too much paying writers etc). Some examples are Ezreal, his is now 2 sentences, Trundle had his entire background changed from a sad, tragic outcast hero, to some asshole who found a club in the tundra and Xerath, from a man who was intoxicated with power that sacrificed EVERYTHING included his fellow students in magic for the power he attained, now he's some ascendant in the fucking desert?! The JoJ (Journal of Justice) is gone, and Champion Judgement have ended a long time ago, I think Talon was the last one to get one. I would write lore for free, I think it's a shame for what they've done, and speaks of their lack of artistic integrity, I love to write and do so as a side gig and if someone asked me to butcher one of my characters I'd quit first. Also in terms of lore, look at the newer champions coming out, and compare their lore with some of the old stuff (that Riot hasn't destroyed yet) Ekko's for example tells us almost nothing about him, whereas someone like Katarina or Talon have amazing backstories.
he can singlehandly turn a large battle around and has centuries of combat experience,he is surely a force to be reckoned with.
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you saw that giant army of sand soldiers he could arise after his ascension?Honestly the guy seems to be a one-man-army in the lore.
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his traveling power is seemingly unmatched and his insight in the world also seems extremely good.
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honestly,cho'gath always made the most "advanced" impression out of all the void monsters that we have in the game.
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who knows how many souls she amassed over time,she seems more like a force of nature now than anything else.
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morde is more or less the evil overlord of the game and those guys usually stand at the top of the food chain
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he almost seized a fortress all on his own,that speaks a lot about his physical capabilities
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lifting a whole castle out of the ground seems extremely op
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tahm seems to have the greatest knowledge about all the champs and the world itself,but its also his traveling power and the fact that he might not even is a corporal being.
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Renekton &Nasus weren't able to kill this guy and his power is still limited
Jax is kind of a wildcard,his lore made him sound like he is the strongest,but it never went into specific detail about him.There is also the fact that he needs a complete retcon anyway.
is my vote, as he can punch through a mountain and has an unbreakable shield. Not much you can't do with that setup.
is close behind but he goes for knowledge more than raw power, on a fight he will be strong enough to hold his own but doesn't have nearly as much raw power as the other two. 
Could grow to become one of the contenders as well but right now she fells short.
this three are the most important figures.
but nearly as much as the first two.
because he's Satan itself if you carefully read his lore, he's cursed by demonic power.