>>16457501Oh. Well, it's up to you.
I used a master ball on my version legendary because I couldn't be arsed to even try catching it, then I traded another master ball from my other version to catch Mewtwo because I wanted one with perfect IVs to use against scrubs who use Mewtwo.
For the record, a Parasect with damp, spore, and false swipe can catch pretty much anything.