I thought:
>"Wouldn't it be funny if I just throw this thing against the Gym?"
And well... it won by just spamming Disarming Voice over and over and over despite being like 15 levels below the gym (obviously at x4 speed otherwise it would have taken like 70 years per mon)
And that's the reason why you don't give Wonder Guard to other mons, much less a Fairy/Dark mon