To be honest, this may be the battle we’ve been waiting for! It symbolized that Ash was ready for the big leagues. He had made it to Johto! Casey is a pretty powerful trainer, but in the end she lacks the hardcoreness that Ash’s team has. With his Charizard he could take down most of her pokemon easily. Ash wins.
DReager1.com 
try another one like caillou vs casey
Sure I can add that to the vault. We’ll see if Caillou is ready for this level of hype
now try casey vs jeffy SML
Jeffy’s more of a fanmade character though so he wouldn’t really be eligible yet