User blog comment:Fistful of Force/Blah blah blah Mechanics.../@comment-4952847-20130404125622

I don't get your point. Every ability has its drawbacks, that's how they balance the game. Mordekaiser's abilities just happen to scale better into late game and have a stronger impact in AoE form. If you put Soraka's ulti on a 10 second cooldown well duh it's gonna be OP.