Make Seastone Trident's empowered base damage scale with Fizz's level rather than being 3x the base.
This seems to me like an easy way to weaken tank Fizz, since I presume he's relying on that high empowered damage from Seastone Trident.
That being the change that brought back tank Fizz and all.
An example I quickly thought up;
75 / 85 / 95 / 105 / 115 / 125 / 135 / 145 / 155 / 165 / 175 / 190 / 205 / 220 / 235 / 250 / 265 / 280
+10 for the first 10 levels, +15 for the latter 7
I thought it was fair to let it scale a bit higher than its current level 9 (assuming W max) value. Don't ask me if that's balanced, I'm not on the balance team.