Mordekaiser fun increasing buffs

Mordekaiser sees never play in neither highelo nor competetive play . The reason he has nothing on his kit except that Ult and passive that could make him interesting or outstanding. No CC and no other form of utility. He´s basicly like katarina in a way. A champ with a great situational passive and Ult and a kit that´s ok.

Problem for Riot he´s too easy to play so they don´t wanna buff him. Fun ways to buff him would be a situational stun on Q "IF he hits an isolated target" for like 0.75 secs that´s plenty. Makes him harder to play and therefore cooler. At the same time he becomes stronger by adding slight hard CC to his kit which he desperately needs.

Second buff a +5 basic MS buff and a improvement on his passive. When Mordekaiser is using his spells he suffers from them till he picks up a hextech. What about if he can sacrifice shield in order to use his own spells. That way he could play around with his shield and decide if he wants to push the lane in order to not use hp as a source or if he wants to let it decay and wait with the push therefore using hp for the next spell.