Glistening Nebula Knightlord, Serius DZ-BT09/SEC06 SEC

[ACT](VC)1/Turn:COST [Return two cards with "Nebula Knight" in their card names from drop to deck], choose up to one of your rear-guards, search your deck for up to one card with "Nebula Knight" in its card name and with grade +1 of the chosen unit, call it to the (RC) the chosen unit is on, and shuffle the deck. [AUTO](VC):When this unit attacks, COST [Counter Blast (1)], choose a column, [Stand] all of your rear-guards with "Nebula Knight" in their card names in that column, and if you persona rode this turn, COST [discard a trigger unit from hand], look at the same number of cards from the top of your deck as the number of your rear-guards with "Nebula Knight" in their card names, and put them on the top of the deck in any order.