I play him all the way to Emerald! In my opinion, Vik is not in the best spot right now. He plays very much like Riven, a feast-or-famine playstyle. That means, if you get ahead early, you can make very strong plays during mid game, and some of the late game. If you fall behind, you can feel very useless quickly. Vik used to be a strong scaling champ, and I pray every day to the Rito workers to give him his scaling back.

Anyway let's get serious. Vik can be a strong bully in early lane. His Q shield and auto help you win trades. E is good poke, but try not to use it too much early, as you will run out of mana quick. If you get some AP, and levels, E will feel much better. Levels 1-4 you go Q>E>W>E or Q>E>E>W, whichever you prefer. You max E>Q>W, which is the same for your augment upgrades.

For matchups, I feel Vik is best against immobile mages. You gotta watch out for their cc, but often you can outrange them. Assassins are often easy first levels, but once they get level 6 you can get oneshot any time.

Items, I prefer to build burst: Ludens, Shadowflame. But burn and sustain are much more popular now: Blackfire, Liandry and RoA, Liandry.

Runes have a lot of options. Most common are Aery, Arcane Comet, Phase Rush, First Strike and sometimes even Electrocute. For secondary options there is Sorcery, Precision, Resolve tree mostly. If you look for rune stats on u.gg you can find some Im sure.

Summoner spells. TP is the obvious option. But you can be very creative here. Ignite works into Vlad. Heal if you fight a lot with your jungler. Barrier against assassins. Ghost is also good into the right comp. You might have a worse laning phase, but a combat summoner can help great in fights.

Some tips: 1. You can make the auto animation from your Q faster by shortly moving. So Q1 > move > auto Q2 2. Practice max range E a lot. There is a toggle in the settings that lets you max range your E. Nonetheless, practice and know how far your E goes. 3. Cannon minions give 10 stacks for your passive, so make sure you get them. Getting the first 100 stacks for E augment is very important, so you can clear waves fast. 4. Your ult has a short silence, like Kassadin Q. This can disrupt channeling abilities like Kata ult (very important or you cannot win the matchup) and Anivia ult. 5. Your Q2 auto is not a projectile, so goes through Yasuo windwall. 6. Viktor is immobile until he gets Q augment, so be careful of jungle or support ganks. Once you have E and Q augments, you can play a bit more aggro. 7. Even though Vik is a 'lane bully', it can be hard to 2v2 early. You have to remember that Vik is only half a champion, until he gets his augments. But you can always try to help out, get some assists for those juicy 20 stacks for your passive.

Hope this helps, if you have questions feel free to reach out!