Fast combo. Thats the way you gonna outdamage em, you can use your E to ingage but, if the enemy is a big threat you must use it for protection (remember your E has a Barrier AND a dash). Fasting combo with an Eclipse will give you enough protection and damage, aswell a little sustain.
When you get your Infinite Edge, you are supposed to Combo Kill anyone who is not building tank.

This will be a little harder. They dont have a strong poke as the assassins do, so farming will be easier, but, they have a better trading against you, trying to outdamage them is gonna be hard depending on the tank champion, even with a perfect fast combo. You can focus on farming to grind in late.

Cry. The most of those champions have a GREAT poke in lane, you are going to be outranged as hell. Its going to be rough to farm and trade. BUT, if you manage to get some gold and get at least 2 or 3 items, you can easily kill those champions with an agressive R>Flash>W>Fast Combo+Ignite, but be careful with the enemy spells and items.