Mordekaiser rework is a pretty good, but i loved old morde aswell.

I've played both old and new I can say for sure, that if you played old , you'd say he was even more broken. Being able to get a double while getting ganked. No relative cooldowns, being able to spam all abilities. New has obvious windows where you can punish him if he uses either hes W or E and dosen't get healed enough or misses, respectively. He dosen't have a permanent shield anymore, he dosen't get healed shiet ton of health if 2 champions sit in his W. And he dosen't delete the enemies HP Bar in 3 seconds like the old morde did pre-6. Old was one of the most broken champions. He could get himself fed, by maxing W. Ganked at level 2-3, it meant either a double kill for Morde, or just the enemy blowing up both their , or in rare cases, him dying. _ The rework, gave him obvious opportunities to punishm him if he misses one of hes abilities, where the old morde could just max W and spam E for low cooldowns and a permanent shield _