Overview
Sasuga is a Support character whose main benefit is team-wide healing and skill point restoration. Their passive ability builds stacks on allies, which boost damage reduction and debuff hit rate, and enable a chain reaction of stacks that enhance basic attack damage. As a Support, they are best placed in the front row to maximize healing during early team attacks.
Sasuga shines at 
with 8 stacks of per ally, and becomes significantly stronger at 
with a team-wide effect that increases allies' debuff hit rate by 50% and healing rate by 100% for the turn. They also have a resonance that restores 75 skill points per skill or basic attack when the team has 3 Support characters.