Try to finish maps quickly to earn the MVP bonus , which gives permanent stat boosts to the unit that dealt the most damage.
Only Big Stars in a character's stats matter; "Small Stars" are just progress toward the next big one. Use stat-up items when a character is furthest away from their next big star to get the most value.
Male characters form unions in an "X" shape, while female characters form them in a "+" shape.
Cards are your most valuable resource, determining your , Power (ATK) , and unique Skills .
In Yggdra Union, items are multi-purpose: they can be equipped for stat boosts or consumed to restore Morale.
Don't just use your strongest cards. Using a card depletes its usage for that map, and once exhausted, it's gone for the remainder of that mission.
Winning battles increases a card's Power, making it more lethal in future skirmishes. Focus on leveling up versatile cards like Shield Barrier or Mind Change .