Sions fun, But underpowered. His base health is too low and his Q takes too long to charge up.

1). Sions health being low is god awful. Why give a champion heath scaling when you're just going to make it have low base health? I could understand if his health he gained for every kill was high. But it's not. It's only 2. And 8 for large mosnter and champions. That's really really REALLY low. Bump either his base health up, or give him a much more powerful health-gain passive.

2). Sion's Q needs to deal full damage in the first second of charge, but you can keep the knockup scaling per charge-rate the same. His Q deals terrible damage at a 1 second charge, and doesn't feel satisfying enough. There's not many circumstances where you can actually get a full charge Q off on anything. If this is intended then it's bad champion design.