Champion Concept - Venom

So, I had an idea for an assassin based around using a pet as a partner as well as attacking on his own. Currently I am calling him venom, but I believe there probably better names possible for him. Here is my current concept for him:

Champion Idea Venom Assassin Abilities Passive – Every fourth auto attack, Venom’s snake strikes, dealing additional physical damage and poisoning the enemy hit for 3 seconds Q – Venom strikes with his claws, dealing physical damage to target enemy W – Venom throws a vial of poison, dealing physical damage, and magic damage over 2 seconds to all enemies in the area E – Venom dashes to target enemy champion, poisoning them, then dashes back to his original position after 2 seconds. The poison deals magic damage over 3 seconds. R – Venom goes invisible, and his snake bounces between all enemy champions in range

Scaling Passive – 50/70/80% AD scaling Q – DMG 80/100/150/220/300 Scaling 70% AD W – DMG Initial 90/150/200/250/310 Over Time 30/40/50/60/70 Scaling 80% AD 80% AP E – DMG 100/130/190/250/310 Scaling 70% AP R – DMG 300/350/450 Per strike Scaling 90% AD

Base stats Movement speed – 380 Health – 600 Mana – 700 Armor – 20 Magic Resist – 20

Any feedback or concept art would be appreciated. Thanks