Talk:Tamamo no Mae/@comment-2A01:E34:EC0D:2B60:91B3:B28F:F7C:931C-20180218020438/@comment-4802891-20180218041712

In all instances it was used, this NP was used to expand magical energy and reduce the cost of spells to zero.

In Extra, it allows her to use her skills without losing MP if I recall correctly.

In FGO, it reduces the cost of spells (Skills cooldown -1) and expand everyone's magical energy (NP charge). The healing effect represents the true nature of the mirror.

In Extella, it allows her to use cranked up versions of her fire and ice spells to pummel the enemies with -In essence it's the same as Nero's NP in this game and FGO: activate Support-type NP > use Super Attack allowed by said Support-type NP.