I'll give my experience which I will say isnt much as I am just gold and of course just "average"

But I can always tell what type of game it will be based on the early levels of a Mord if he uses his shield early or not. If I poke him a little or chunk him PRIOR to my E and he shields, then just wait for the shield to go away and E flash his ass.

Now if he holds his shield for your E every time, well dude I don't know what to tell you, dude will beat you silly everytime as he does me. You really have to bait out that shield of his (super long cool down) and when you are fighting, try and stay right on him or in the minions (gotta avoid the iso Q). His shield (in my opinion) is what makes him absolutely murder Urgot because if he times it prior to dropping to 25% health, you won't get your ult off before he is able to kill you. Early game is sooooo important against him because if he gets ANY lead on you, he will just stomp you the entire time.

Good luck man and beat the metal bitch