This is an auto generator Team, any ideas on exactly how a team should be made.
For starters, if you could level up and get ready any more Water element Childs, since this World Boss is Fire element and weak to Water. In general, Freesia (lowers enemy DEF), Persephone (lowers enemy ATK, Weak Point DEF), and Melpomene (raises ally CRT, CRT DMG) are useful 4* Childs for all World Boss events and good to invest in. For this World Boss, Danu, Quirinus and Elysion are good Water element 4* Childs to invest in.
it lacks a lot of water attackers, its also gonna be difficult without mars nor dana. I'd recommend you level up some 4 star attackers with poison to put in the backrow.