One option is the word elusive.
another option is imponderable
imponderable is impossible to capture
Uncapturable. Note: Its opposite, capturable, is not a word according to Merriam-Webster, but uncapturable is.
Impossible.
you cant capture ur foes Pokemon it is impossible
The noun form of the word "capture" is "captivity."
Braman is impossible to capture in a picture as he represents everything.
capture?
This is an example of an impossible scenario in chess. You can never capture a king; you can only checkmate it.
The base word of impossible is "possible."
It's impossible without hacking. If you hack it, the capture rate isn't that bad, so a Pokéball should work.
"The word impossible is not in my dictionary" was said by Napoleon Bonaparte.
"Answering all of life's questions is impossible.""The word judge's sentence was impossible to carry out."