I will update the battle scripts to where the Pokemon have one standard catch rate once they get down to their last 2 lives. This will not only prevent confusion and help you to not knock them out, but also free up battle space so I can fix the Mack, Bowyer, and Axem Red battle as well.
Catch Rates:
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Dailgia, Palkia: 40%
Groudon, Kyogre, Giratina, Azelf, Mesprit, Uxie: 30%
Lati@s, Rayquaza, Arceus, 20%
Celebi: 10%
haven't decided yet,but I may halve these values for the hard mode.