Can be used by any servants for immediate NP charges at the start of the battle besides being easily obtainable from gacha.
Begin battle with your NP charged at 30%
Begin battle with your NP charged at 50%
How to use
By limit breaking this CE to the max level using four CEs of the same kind, you will be able to achieve 50% NP charge at the beginning of the battle, which is almost on par with the 4* CE, Imaginary Element that provides 60% NP charge. Among the CE pool of the lower tiers, this is one of the CE worth keeping as not only it has a high usability but its low cost also enables it to fit in almost every party unlike those higher tier CEs.
Suitable servants to be equipped with this CE are those that have at least two Arts cards in their command card deck so that it is faster for them to fully charged their NP gauge.