I main Ziggs and quite honestly they need to buff his Satchel Charge, it's just sooo unreliable. Whether you actually get over a wall is a total **** shoot, even Phantomlord the high elo guy who mains Ziggs misses it all the time. Just watch his stream.
The problem is in the way it functions. The closer you are to the middle of the satchel charge the higher it sends you, the problem is if you're to close to the middle sometimes it just pops you straight up and doesn't get you over walls or let you escape, even when used correctly, and if you're to close to the edge of the satchel charge it doesn't get you high enough.
It needs one of these buffs:
- The distance it throws you should be increased (again), so you don't have to be near the middle to get the highest jump, you can be at the edge and ensure you get where you need to go.
- How high it throws you shouldn't be dependent on how close to the middle of the satchel charge you are, you should get it's max height even if you're at the edge. Again this would give you better control, a better escape, and make getting over walls a little easier.
All of his other skills work fine, but the quality of life improvement you're suggesting would be great too.