[Menarker]

Well, Adamantistorm is the exception in that only you can use it. If anything had to be nerfed, it would be that. But that is the result of your upgrade for Stage X pokemon boost. I wouldn't touch that at all.

I don't think any of the weathers or moves that count as weather need to be nerfed, including Adamantistorm. (Of course, this does mean I feel that Gravity and Trick Room should count as weather conditions with all the rights and abilities they do in the actual games.)

As for Drac's morale suggestion, that was what AB did at first. But it was dropped, mainly because of conflictions. Let's say that Sunny Day was up and a steel type was out. Normally, under that custom rule, they would take increased morale damage. But some steel types can use fire moves, which otherwise helps them. Logically, a pokemon that can benefit from a weather probably has been trained enough to not be effected morale wise for it.
And not counting the simple one like how Sunny Day boosts fire types and thus would be bad for grass, except that it also boosts several grass types moves.

Hence that morale suggestion is just needless complications on top of a already complex system.