"Mordekaiser is impossible to balance as a solo laner"
Proceeds to give him a free power in form of exp-penalty free passive that will always give him a level advantage without any effort
See, this is EXACTLY THE SAME case with Yasuo, you're giving him an out of nowhere free double-crit passive which he doesn't have to work for. It's just a lame excuse for "oops, he actually can't really compete, better give him a free power passive which thematically doesn't have any correlation to the character anyway". That "impossible to balance" statement is nothing but an excuse just to shape him into what you have in mind, not what the community have in mind.
And you wonder why people hate CertainlyT.
vs
: Both have 100 AD and no items.
apparently is in a duo lane with solo benefits.