Retrospective Dragon

[AUTO]:When this unit is placed on (RC), if you have a vanguard with "Thegrea" in its card name, [COST][Soul-Blast 1 & discard a card from hand], search your deck for up to one grade 3 or 2 set order, reveal it and put it into hand, and shuffle the deck. [AUTO](RC):At the end of the battle this unit attacked, [COST][retire one other rear-guard], choose one of your [Glitter] units, and it gets [Power] +5000 until end of turn.