So are we gunna leave Fizz's ult as OP as it is or?
Any decent Fizz is going to shoot it from a distance, and when they do, it becomes a massive AoE bomb that's arguably a heat seeking Ziggs ult with none reduction of damage the further out you get hit by the ult.
I think the size of the AoE needs to be toned down.
What they did with the damage is fine, however, they need to tone down how big you can make it.