The chance of catching Groudon with a nest ball in extremely low. If I somehow did that I would freak out as hard as he did..
ok so the formula for the rate is:
((40 - Pokémon's level) ÷ 10 )x
if groudon is level 70, that makes 40 - 70 = -30 ÷ 10 = -3x catchrate
how do you catch stuff with a negative catchrate