You get exp points for your first 19 wins against most challengers. It's counted for each pet. So if you have five pets that can each beat a changer 19 times they will all get exp points.

You only earn experience and sp for the first 19 wins against any challenger. You'll still earn war points though :)

Where do all the experience points accumulate ? or where do they go?

Ive only just started battling and Ive noticed you get exp points, but I have no idea what that means! ^^

Click the link Spend Experience Points located at the top of the battle challenge page.

Oh tyvm for the help, greatly appreciated! ^^