Entrancing Flower Princess, Sandrine (V-SS05/S25EN) [Premium Collection 2020]

"[Stride]-Stride Step-[COST][Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] [Stride] this card on your (VC) from face down. [ACT]{G zone}:If this card is face down and your and your opponent's vanguards are grade 3 or greater, [COST][Counter-Blast 1 & retire two token units], [Stride] this card on your (VC), and this unit gets [Power]+10000/[Critical]+1 until end of turn."