Morde is pretty different from before as you can now us ad and his spells have a different feel to them as well as how they are used. What you are looking at doing with this build is when you can and remember, stack damage for your third q attack. So basically you Q then attack, attack, wait for Trinity proc again(which is just a tick or 2 away), cast your E, use your Titanic active, then follow it all up with the last the third attack on your Q. With the health stacking for Titanic and the AD ratios you get for your Q, you'll be hitting for 1k plus with the ability to get slapped in the face repeatedly. If you wish to add more dmg for your shield you could always start the fight with you ulti.

The build isn't Q specific either, with the amount and resistance and health you have the ability to front line no problem. Just make sure you try and get that shield as soon as possible, Sterak's Gage will help you out with that. Lord help them if you get the combo off during that item's active....Tons of Damage.

My apologies for not looking pretty, I am I bare essential type of person sometimes.