R: 120-80 (0 if used while possessing)
Viego's Skill Max Order: Q → E → W
Level 1: You win level 1 hard, so play aggressively. He starts Q, but it doesn't do much to you early game. Run him down if he gets into range of you.
Level 2: Viego starts W, and your E can cancel his W. Do it right when you see "Channel" on his name because he can pre-emptively cancel it early to stun you. If you E before he does this, it cancels the ability. If you cancel his W, it is put on a 3 second CD for him to recast it, so keep that in mind.
Level 3-5: His mist is the most annoying part of the matchup. Be careful of diving him when he has this up. If he uses mist, it lasts 8 seconds on a 14 second CD, which is pretty broken. If he uses the mist ever, try to hard engage on him before his mist comes back up because he's defenceless for a short window without it.
Level 6: You can't cancel his R with E damage, but you can still vault on him when he lands. When he Rs you, instantly vault him, AA for harrier speed, then run away to avoid his W stun.
This matchup I have only played twice toplane, but from my games, I think it is okay. I will update this more when I face him more.
E cancels his W stun, and basically play the lane aggro, and if he uses his stealth ability, try to fight him after it expires because you have a short window to do a lot of damage to him.
Post 6, if he Rs you, Vault him instantly and run away to escape his engage. Do not dive him when his stealth ability is up becasue it is such a good ability to prevent diving from happening.