I'm afraid Hyper Potion doesn't work like Max Potion. Hyper Potion can only be used on Pokemon with at least 2 Energy attached.
Ah, yeah, my mistake. Forgot that it needed that condition. Would still work with Cheryl though! Or ramp back to bench via Metal Saucer and move to active via Bronzong.
Okay, my quick thoughts:
3) Interesting that Bronzong and Cheryl work well together, however I am not aware of any metal type tank decks that use evolved Pokemon at the moment. Maybe Aegislash VMAX or Scizor VMAX in the future or in Expanded? Sturdy Aggron DAA for an unkillable Aggron lol (Ability: "If this Pokémon has full HP and would be Knocked Out by damage from an attack, it is not Knocked Out, and its remaining HP becomes 10.")? Damn. That actually might work...
I think any metal VMax in the future would fit the Bronzong/Cheryl strat. Copperajah VMax comes to mind, has 340HP and a 240 damage attack. It's problem is that Copperajah needs 4 energy to hit for 240.