as far as i know, when they come into play, the faster one, (which we will say is groudon cuz thier speed stats are equal w/out ev distribution), uses his ability, which causes a sunny/rainy conditions. then the other poke (kyogre in this case) ability goes into effect, and the feild is switched to the rainy / sunny conditions.Originally posted by Misdreavus
3. What happens if you have Groudon and Kyogre out at the same time in a battle? Their abilities conflict... is there just no weather at all?
again, this all depends on their speed stats, cuz both will go into effect no matter what