This card is useful in Diamond Dude Turbo Decks due to the high number of DARK monsters included. If used with the effect of "Destiny HERO - Diamond Dude", costs and activation requirements are ignored, giving you three free cards.
You can Special Summon "Plaguespreader Zombie" with its own effect and put this card on top of your deck for its cost, then activate "Destiny HERO - Diamond Dude"'s effect to get around its activation requirement.