Avoid spoilers as much as possible!
Don't be afraid of experimenting different combos and strategies. The combat system is very deep, you should rotate characters to extract maximum enjoyment. Also use Maelle, girl is busted and she's cute
Remember although this is a turn based game, it requires attention and focus to hit party/avoid windows
Pay extra attention to the details in the story, read the bits of lore if you can
Act 3 is mostly side content, and is supposed to be done after you beat the game not before
Overall, just enjoy your time!







