Garen

Garen will hardly be a threat for you, so you can damage him and egress without getting too harassed. But don't let him get too close, otherwise he may be a problem for you.

Kalista

Kalista has a great AD potential, so you must avoid her basic attacks. However she doesn't possess escaping capabilities, so you can zero in her pretty easily.

Fizz

Fizz is a pain if well played because of his E. He can use it to avoid your trap, so be careful and play close attention to his movements or he can burst you very easily.

Veigar

Veigar vs. Veigar is always interesting to see. He has the same weaknesses as yours, so be careful not to be trapped and bursted like you will do.

Ezreal

Ezreal is a monster. He can deal a whole lot of damage and worse: he can teleport in and out of action. This is going to be a problem for you, so try to use your Q to poke him as much as you can, since you won't be able to rely on your E at all times.

Blitzcrank

Buritsucranku can whoop your butt if you're not careful. If he connects your pull, there's a 95% probability, as for mid game, you'll be respawning really soon.

Katarina

Kat is a top tier burster, so if she manages to close on you, say your prayers. Although her damage potential borders absurd, if you keep your distance, you can sucessfully harass and one hit her in late game, since she doesn't have too much of MR (actually a MR build for Kat is very unlikely to happen, but it's not impossible).

LeBlanc

LeBlanc is a broken mage and she can deliver an absurd amount of damage per ability and amazing mobility, so if she connects with you, it's gonna be hard to flee.

Akali

Akali is a bursting monster, just like Kat. Be careful with her.

Evelynn

Fiddlesticks

Lissandra

Ashe

Ashe and her Q can be a problem for you if you're in her range, due to the great amount of damage and slow she can deliver in a rather short amount of time.

Aatrox

Aatrox is a dive monster, so no further explanation is needed.

Ahri

Ahri is a direct threat to you. She's mobile and her abilities will debilitate you a lot if you're hit, so she can rack up the damage against you.

Alistar

Try to slow the bull if you can. His displacement capabilities can be a problem if you let him get too close.

Draven

Draven doesn't have escape capabilities and doesn't make up much for a direct threat for you, unless he's supported by a Blitzcrank.

Zed

Zed is a high mobility threat and he can nullify the effectiveness of your Event Horizon, so avoid engaging him head on and only close in him if he's defensive.

Xin Zhao

Xin Zhao is an absolute monster. He can jump from a bush and nearly instakill you if you aren't aware of your surroundings. A good way to counter Xin is to anticipate his jump and caging him at the end of his jump.

Yasuo

Yasuo is a high mobility threat just like Zed, mostly because of his gliding mechanics. Avoid him at all costs, unless the combat is imminent or there's backup.

Teemo

Te emo won't stand much of a chance against you. Just avoid getting caught by surprise by his Mushrooms and his Q and you'll be able to outplay him with ease.

Lulu

Your girlfriend is not a threat, but must not be overlooked. However she's a good support, so she's a higher priority target for harass during early game, because if she gets enough AP, she can be a real pain in mid game (polymorph sucks).

Graves

Graves deals a huge, I said HUGE, amount of damage per shot, so avoid getting close contact with him, since he can two shot you mid game.