Aurelion Sol
Okay so we have a ultra powerful being that can create and destroy stars with the slightest effort, yet his ultimate is the most underwhelming thing I have ever encountered. At level 1 it does 150 base damage with a 70% scaling, which is like a rank 3-5 ability of many other champions. Veigar's "q" does 150 damage at rank 3, with a 60% scaling and grants you extra AP when you kill things. The slow and knock back is nice, but not really enough to justify at 110 second cooldown. I suggest making either his ultimate do at least 75 extra damage at all ranks, and decrease the cooldown to 60 seconds at rank 1, not going down with additional ranks. This would make his ultimate feel a lot more impactful, whereas right now it feels if you miss an ult you just wasted your only way to disengage, and won't have it ult for another 2 minutes. Which just feels lame.
EDIT: While it is a good and very useful ability for utility purposes, it just feels like it doesn't do enough damage to justify the large cooldown.