As viktor, By this time, he will have his first significant ability upgraded. This allows him to garner much team fight pressure, and now he can take regular fights.

Another point in his Ultimate m will allow him to dish out a lot of consistent DPS and use the ability quite frequently.

At level 9, his y will be maxed out. This will let him clear waves in a jiffy and deal tons of damage to targets hit by it.         As viktor, At that time, it will have its first significant enhanced capability. This allows it to gain a lot of team combat pressure, and now it can take regular fights. Another point in its Ultimate m will allow it to flatten a lot of coherent DPS and use the ability quite frequently. At level 9, its will be maximized outside. This will allow it to release waves in a jiffy and inflict tons of damage to the targets affected by it.