jasminlovesyoux
Banned
In the first 10 man trial (where you can't bring friend), the boss's second form suck MP of all your units, Tilith will heal and give 50 MP to everyone (beside her), pretty much invaluable.
Otherwise, Aria is also a good 4* healer, her MP heal is a refresh though so it trigger only at the end of your turn (then the boss proceed to steal it >.<)
Then there is Eiko, but also 5*, healers are pretty limited.
EDIT : current best healers in Japan with google translate
Oh alright lol, I'll start saving and pull for her.
*begrudgingly saves lapis and tickets for Tilith*