Just keep her base skills and give her Wings of Mercy, maybe some other C skill options too if there's drive and double spur fodder laying around. I got her -Atk so you could have it worse.
Healers are so limited anyway and the +5 HP does help Thokk's gravity ploy. If not using her in the arena, so the scoring aspect of the duel skill is irrelevant, she could go for the premium Atk/Spd Push, bond skills or the simple Atk+3.
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes