as an prework morde main i agree. been saying this many times. The issue is his passive.
Too easy to proc if he lands e, not all that hard to proc if he doesnt also. The bonus movepeed and insane, but refreshing dot aura is too strong. it does shyvana level of aoe damage and it isnt gated by cooldown.
The passive needs either reduced damage, a duration before going on cooldown, or at least a cooldown of its own thats significant like 8-12 seconds that gives u a window to fight him again.
Only the strongest bullies up top can beat him early, and even then its usually if he misses his grab and doesnt start the dot with a quick e q auto combo.
Allow us to go even or even lose the first trade when we or he engage on one another, but have him need to back off for a bit before he can pressure with that insane passive again. it needs a significant 10-12 second cooldown given that anyone that isnt darius and is applying his own insane dot loses the trade so hard.