Board Thread:Questions and Answers/@comment-14.185.127.68-20161201085517/@comment-28265227-20161201095113

You can use it on the servant they have high HP heal skills or NP heal like Medea (Lily) for quick NP gain to heal all party HP.

Or give to a servant have powerfull NP, for quick NP gain and can always spam their NP. But you need put a heal role servant too. If not, this CE not good for a long run battle.