[AUTO](RC)
Generation Break 1
(This ability is active if you have one or more face up G units in total on your (VC) or G zone)
:[Counter Blast (1)] When this unit attacks a vanguard, if this unit is boosted, you may pay the cost. If you do, choose one of your opponent's grade 2 or less rear-guards, and
lock
it.
(The locked card is turned face down, and cannot do anything. It turns face up at the end of the owner's turn)