This is a C3 skill but it’s not much of a useful skill at it current state.
What it can do is it’s maintain all buff of your friend and yourself as long as Melstis is still active.(it’s drain your SP 5% per second).
What I will suggest is , make [Melstis] also can maintain all Magic circle in it range.
For example. An elementalist use [Frost cloud] that have duration of 10 sec, with [Melstis] actived, it can last as long as [Melstis] still up.
But, of couse it should only effect the Duration of the magic circle. Some magic circle that have hits count such as Zaibas will still gone when the hits count reach it’s limit.
This will make [Melstis] a good combo with many skill.