Poison Sickle Mutant Deity, Overwhelm

-Stride Step-[Cost][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. :[Cost][ 1 & choose a face down card from your G zone, and turn it face up] Draw up to the same number of cards as the number of your opponent's rear-guards, and if the number of your opponent's rear-guards is one or less, this unit gets +1/drive +1 until end of turn. Dark Device:All of your units get +2000 for each face down card in your opponent's damage zone.