Men of Blue Wave need to have the wits to comply with voices of the sea.
[AUTO]: Forerunner
[AUTO](RC):[Counter Blast (1) & Retire this unit] At the end of the battle that this unit boosted a rear-guard with "Blue Wave" in its card name, you may pay the cost. If you do, draw a card, if you have a face up card with "Blue Wave" in its original card name on your (VC) and G zone, choose one of your rear-guards, and it gets [Power]+4000 until end of turn.