Esther solo strategy against Ramuh[]
Due to Esther's unique ability with her Storm Kickers TMR bonus, Stormborne, she will absorb all lightning attacks as healing. As such, you can forego removing any lightning debuff and simply stack debuffs. Avoid using lightning-based attacks and abilities, and make sure your weapon is not imbued with Lightning elemental properties (i.e. Do not equip her Asterisk event item).