User blog comment:RyuuseiR3/Winter 2017 Product Schedule/@comment-5214176-20170202132204/@comment-26279475-20170202135102

Those cards have the legitimate skill.

From what I know, Rouga and Kiri effect are the same as Oswira Gard and Battle Aura Circle. Also, the card says "You can put "valentine promo's name" and "the original card name that have that effect" total 4 cards.