School Etoile, Olyvia (GR)

[Stride] (Released when both players' vanguards are grade 3 or greater!)-Stride Step-[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.
[AUTO](VC):[Counter Blast (1) & Choose a face down card named School Etoile, Olyvia from your G zone, and turn it face up] When this unit attacks a vanguard, if the number of face up cards in your G zone is one or more, you may pay the cost. If you do, choose up to five of your rear-guards. If all of the chosen units have different card names, return all of those units to your hand. If three or more units were returned, choose up to two cards from your hand, call them to separate (RC) in different rows, and this unit gets [Critical]+1 until end of that battle.