Looks like I was right.

Morde is hot trash 45% winrate (op.gg, today function) in the new system. Without the flexibility of old runes and masteries for players to cover up his individual each game weaknesses he is literally a walking pile of cc me once and kill me. Even building full damage he can’t seem to compete with anyone that takes lethal tempo because he can’t touch them. Building full tank to utilize his base damages? Nope, he has no cc, and too low of base stats to make the extra tank stats do anything.

Stop acting like you didn’t know this game would be this unbalanced with the new runes, and that the new runes fixed anything other than damage champs can now always kill you before 1 cc wears off.