Nebula Knight of Fulfillment, Corleanis

[AUTO]:When this unit is placed on a (RC) with a grade 1 card with "Corleanis" in its card name, if your opponent's vanguard is grade 2 or greater, [COST][Counter-Blast 1], search your deck for up to one grade 3 card with "Corleanis" in its card name, call it to the (RC) this unit is on, and shuffle the deck. [CONT](RC):If you have a vanguard with "Nebula Knight" in its card name, this unit cannot be retired by your opponent's card effects.