IS PYKE BALANCED?

When I first encountered a Pyke on the enemy side that got tons of kills, I thought he might just be a good player. However, when I bought this champ and used it for the first time, I found out this champ is really braindead. He is like a combination of everything. He is able to heal and sustain in lane, being invisible, hook. He got gap closer, cc and the ability to execute enemy champs and clean up a fight with his ultimate refresh and he is able to give his teammate golds. Although I missed almost every hook and my e, I was able to kill everybody in a fight just by using his ultimate. Playing Pyke, I could make a lot of mistakes and safely get out of many bad situations using his W. He is having too much impact of the game in low elo.

Pyke has always been the issue in the game and he definitely deserves nerfs:

1. His ultimate should be having less base damage and the damage based on lethality.
2. His ultimate should not be refreshed after killing or assist.
3. The stun by his E should not be scaling by lethality.
4. His W should not be buffing his speed.
5. His Q should not be slowing.
6. His Q should be shorter.
7. His Q should not be refunding mana costs when cancelled.
8. His Q should be costing more mana.
9. He should not be able to heal after taking damage.