Hi! I've been training Geuze through the Riverside Valley Training Center but I was wondering if there's a faster alternative?

You can do daily Battle Quests for exp. points that you can use to buy stats, as well as using stat-boosting items to raise stats. The Battle Forum is a great place to learn a lot more about training and battling.

Like exquisite said, doing the battle quests every day can be a pretty good way to get exp for your pet, which you can then spend on stats. Even if you've battled an opponent many times already, you still get a decent amount of exp by defeating them in the battle quests. I would always start from level one if you're doing it for the exp, no matter how strong your pet is.

Not necessarily a "faster" alternative, but more like something extra you could do: if you complete Shinwa's quest every day, she will sometimes give you items that you can use on a pet to improve one or more of their stats. They usually give the pet 1-3 of one stat or 1 of multiple stats.

There are also a couple of opponents in the battle arena which drop certain loot that are stat boosters for lower tier pets. I recommend checking out the 1P Loot tracker - Collaboration Project to see which opponents drop these items. There's a link to a spreadsheet in the first post there. Make sure that you pick the option "use" instead of "feed" when giving them to your pet if you want to get the stat boosts!

You can find a list of stat boosters on the Stat Booster List v2.0 topic.

Thank you both, I didn't know about these at all!

I find auto training to be worth the early on when you can do it. Remember stats go to 2.5x that of level so do your best to ONLY bump level when you can not train other stats up, DO NOT DO LEVEL UNDER AUTO TRAINING. Try to also do Quentin quests to get amulets to hopefully get tomes, hoard them for a later time when Stat training gets slower. If the oracle (check in on that periodically as they show up as RE) asks you to complete a quest make sure your training pet(s) are active when you go turning in as she grants a random stat (up to 6 points I think) for reward. Don't forget intelligence, you need it for spells. Play Mystic Spindles, read books from quests as well as other items that you wouldn't think like the cds or geeky fruit. You can only read one copy of anything to a pet. Every 16th point in intelligence raises the AP use by 1, so best way early on is to play the spindles and read book for the 16th point. As for weapons be ready to drop serious sp and trading the higher tier you go. Same with spell scrolls. You can make some cheaper than buying the final product too at times and sometimes it's the opposite so research what you're working to have in your battle set(s).

in addition to what everyone else has said, your active pet can also receive stat boosts from scratchcards. it's only one point at a time, and not super common, but scratchcards are only 1k sP and can be bought every 5 minutes (unless you buy them from user shops) so it's worth doing those whenever you have a chance/remember to.

I've learned so much just from these couple of comments. I've never been much into pet battles, but this might help me get into it :)