Ornn

[Recommended: Grasp/PR/Conqueror, Sunderer or Standard AP/AD Build] Tankier as fuck and does a quite significant amount of damage. Punish at lvl 1 as much as possible. Play around his cooldowns and trade as much as possible. Save your empowered W to dodge any kind of CC he puts. You don't kill him after mythic unless you're going AP or he's extremely bad.

Sion

[Recommended: Grasp/Conqueror, Sunderer or Standard AP Build]

Teemo

[Recommended: First Strike/Electrocute, Standard AP Build] You can't do much with either Bruiser or AD Rengar builds after 6. If you're against a good Teemo, he'll put mushrooms on either the bushes or around him to stop you from safely leaping. I strongly recommend going AP Rengar, as your main source of damage is your W and you can burst him pretty quickly. Take Doran's Shield and Second Wind. You win if you don't take a lot of poke and you go AP Rengar, as you'll be trading him a lot and having better sustain with Shield and runes.

Fiora

[Recommended: First Strike/Grasp/Conqueror/Electrocute, Any Build] I consider this a skill matchup, Fiora favored. You win if Ripostle is down/she is extremely bad and doesn't use it to cancel your combo. In general, you MUST bait her Ripostle leaping through minions, and trading while her W is on CC (at lvl 1 it has a lot of CC, so you have a good gap to trade her). If she cancels all your damage with Ripostle, save your empowered W to cleanse the slow. It will be a point on which you can't win 1v1s anymore and you will die if you don't burst her, so be careful. ALWAYS rush Executioners and Plated Steelcaps to reduce her damage and healing as much as possible.

Aatrox

[Recommended: First Strike/Electrocute, Standard AD/AP Build] Aatrox's Q counters your leap, so be careful at lvl 1. You should win this match by bursting him rather than having extended fights on which he can obliterate you. Take Executioners, respect his damage and trade him when his Q is on CD, as it has a significant amount of CD at low levels.

Darius

[Recommended: Phase Rush, Any Build] So, let's be honest: you're fucked against this guy. You can't do much with any build, as you're fighting against HIS terms, not yours. Overall, this champion is ban worthy, I recommend trying to farm and not die, and roam to other lanes to search for kills. Phase Rush helps you to reduce the amount of slow both E and W gives.

Irelia