I always want to share skills ideas so you guys have better options. Take a look at it 😜👇
Her name Serenity

Trait: immune to Freeze. Removes all negative status effect to itself. Additionally, it will recover 10% of its maxium HP each turn. Role: Tank Monster

Group 1:

Water Druid: Deals low special damage to one enemy.
Air Song: Deals low Water Damage to one enemy. Removes 10% of stamina
Water Wish: Deals moderate Water Damage to one enemy. Heals itself with 15%life

Group 2:

Big Bubble: Deals moderate Special Damage to one enemy. Applies stun immunity to itself.
Nightmare song: Deals moderate Water Damage to all enemies. Gives 1extra turn to itself.
Sirens song: Delas heavy Water Damage to one enemy. Applies Water Weakness

Group 3:

Frozen Heart: Deals moderate Special adamage to one enemy. Applies Water Weakness to one enemy, Gives 1 extra turn to itself.
Bubble Protections: Applies 100, or 50% Life shield to all allies, Applies Double healing to itself.
Holy Song: Deals low Water Damage to one enemy. Gives 1extra turn to itself.

Special Skill: Pure Water Heart: Deals moderate water damage to all enemies, Removes all negative status effect to all allies, heals itself with 100% Life and Stamina, gives 1 extra turn to itself.