What is wrong with Stealth Rock? I see the power of focus punch is 50 instead of 150, so I can see that move is broken. I have heard of your quest to get struggle bug onto shuckle. Why indeed are these things not fixed/ added? XD
Perhaps some kind of minigame you can grind for event tokens with each event? Allows people to farm some tokens during events. That keeps them "event vouchers". I also suggest making minimum 8 IVs for event voucher pokemon.