Merciless Mutant Deity, Darkface

-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. Dark Device (Active when your opponent has no units in the same column as this unit):[ 1 & Choose a face down card from your G zone, and turn it face up] Choose up to the same number of your opponent's rear-guards as the number of face up cards named "Merciless Mutant Deity, Darkface" in your G zone, and until end of your opponent's next turn, they get ":This unit cannot intercept (), and cannot be chosen by your card effects and costs.", and for each rear-guard chosen with this effect, this unit gets +5000 until end of turn.