Diabolos Returner, Derick D-BT03/004 RRR

[CONT](RC):If you are in "Final Rush", this unit gets [Power]+5000. [ACT](RC)1/Turn:COST [Counter Blast (1) & put a rear-guard into your soul], choose one of your opponent's rear-guards for every four cards in your soul, and retire it. Then, if you are in "Final Rush", look at the same number of cards from the top of your deck as the number of your opponent's open (RC), choose any number of unit cards from among them, call them to (RC), and put the rest into your soul.