Dani

Well I think that they should've done something like "Press L+R for Ability" with a longer cooldown. For example Intimidate could take 2 minutes to recharge, allowing(and forcing) you to build strategies. Other abilities like Mimikyu's disguise, as you pointed, could be as basic as it is. The first attack doesn't fully land, and the disguise goes back to normal at the end of the battle..... They could even make an animation of him putting it back if they cared.

For the weather ones something like "Rain will appear for 10s lowering fire attacks. 90s cooldown"

But hey, we're the gamers and they're the ones making the games so what do I know?