Solitary Healing is a 5 star The Nihility Light Cones.

Moth To Flames 

Increases the wearer’s Break Effect by 20%/25%/30%/35%/40%. When the wearer unleashes their Ultimate, increases DoT dealt by the wearer by 24%/30%/36%/42%/48% for 2 turn(s). Defeating the target suffering from the wearer’s DoT allows the wearer to regenerate 4/5/6/7/8 Energy.