If it means getting the Pokemon residing in the ball be possessed by Nihilego then no thank you...
I presume this ball trapped Nihilego, and Pikachu was the bait that kept Nihilego in place long enough to be trapped. Nihilego just dragged its snack in with it.
Farran said:
Is there any sort of problem with them being in Beast Balls?
Because seriously, they look damn cool. I'd love to have some of my mons in one of them...
The only problem is that it has a really low chance of trapping things, and there is a finite number of balls in the game. That Beldum has, at most, a 0.2% chance of working (and the shiny is another 0.025% chance on top of that, so that shot was almost literally one in a million), with 50 balls in the game (and you'll probably want to use some on the UBs...).
Once you actually have something in one, no problem at all, breed and trade away for bragging rights.