Nebula Dragon, Cyclic Dragon

-Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] this card on your from face down. :[Choose a face down card from your G zone, and turn it face up] Until end of turn, this unit gets ":[ 1 & 1] When this unit's attack hits a vanguard, you may pay the cost. If you do, choose a rear-guard from your opponent's front row and back row, and lock them.".