Turbulent Signal

:[ 1 & Retire this unit], put the top card of your opponent's deck into the drop zone, and for each grade of that card, choose one of your opponent's rear-guards without any Cradle markers, and put a Cradle marker on it. (That unit loses its original abilities, has its reduced by its original , cannot boost nor intercept, and when it is retired, you search your deck for up to one card with the same grade as that unit, reveal it and put it into your hand, and shuffle your deck)