I'm unranked because I haven't been playing ranked this season for a variety of reasons. I was Silver I last season, but got lazy about reaching Gold.
Just because the small % of players in your bracket fined him useless doesn't mean that the he isn't fine in To the 99% "75%" of players that are bronze and silver
You are the 1%
That doesn't make logical sense because Mordekaiser has a miserable 2% pick rate, out of which he wins only half. The community has already voted him useless by the value of picking him only 20,000 games per month despite playing 30,000 games per day.
XD only one of his abilities can be counter by
and even than hes a huge counter to assassins and his dmg is great he doesn't need to stick to targets they all run from him and if they stay they die.
And that makes him useful how, exactly? Assassins don't need to acknowledge him, they'll just go after the carries while the tank rushes Morde and locks him down from doing any damage to high-value targets due to his low range. He cannot tank because he cannot actually keep the enemies from attacking his teammates, all he can do is throw around damage and hope that the enemy dies before they kill his team. And once he no longer has a team, he can be simply focused down.
When a character's strongest competitive point is that he makes people run, aka ignore him in favor of taking out his towers, jungle and other actually valuable objectives, then it's not much of a strength. Killing Mordekaiser won't win me the game, destroying his base will. So I'll just go ahead and pretend he doesn't exist while I destroy his base, he cannot catch me with that 200 range and zero mobility anyway.