10) Go back to old stages to farm for gold and experience points.
Once you finish the tutorials, you will be able to play any previous stage you want, so if you want to level up all three of your current party at the same time, go to one of these old stages, preferably the toughest one that you beat, or the last one that you beat, as these will be the ones which provide the most experience points.
9) Check out the portal on different days for different rewards.
Go there on Monday in order to get scrolls, Tuesday through Friday for element-related crafting items for talismans. Go on Saturday and you can earn a lot of extra gold, but go on Sunday, which is the best one, and you will be able to earn loads of quick experience points for your fighters.
7) Got a bunch of extra gold to spend? Spend it on talismans.
Go to the store and you will be able to find talismans, along with scrolls and potions, more of them every day in fact, and purchase them. As your heroes gain star ratings, or you find heroes with higher star ratings, you will be able to equip more talismans at once, so purchase talismans to keep around – and just because it will be the only way to spend your gold most of the time.
6) Craft all that you can in the foundry.
The foundry will let you craft talismans and potions, as well as other goods, so go here to spend all of your craft items and put them to use. For example, to speed up any battle, use a Berserker Token, or use any of the multitude of other buffs and stat boosts that you can get from talismans here.
5) Upgrade your heroes to increase their star rarity.
A hero can be upgraded once it hits its maximum experience level using the big middle door in the temple, and a combination of gold and either silver or gold ingots. Then said hero’s level will drop back down to 1 and its star rating will increase by one. Any hero can be upgraded to a maximum of a seven star rating.