When you are training your pets, you are also earning EXP. EXP can be used to buy more stats. You can also complete battle quests that help give you extra EXP.

There are also "secret" opponents that you unlock by various methods (so you can unlock more lower difficulty opponents), the opponents also scale up in difficulty the more times you beat them, and some give rewards past the 10th win so you can keep going at an opponent until they are too hard for you.

The battle forums have a lot of resources, and the chat thread have a lot of users happy to give out advice too :)

Useful Links:

What to do on Subeta? FAQ Useful general information for newbies Customise your dashboard Useful Custom CSS Builder Shoutbox (live chat) / Discord Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.) Current event: Morostide