FLIP: You can Special Summon any number of “D-Boyz” from your Deck in face-up Attack Position, then you take 1000 damage for each monster Special Summoned by this effect.
I'm not going to immediately say that this card is ZOMFG broken. But in the past, anytime you could spam Monsters from the deck with one card it was a good thing. I will say that this card is rather balanced at first glance. It being a flip effect in a meta full of Boss Monsters makes this rather tame. Also, taking 2k from using the effect in addition to paying for Solemn Warning and any other costed cards you may use will have you feelin tha pain. The fact that the card CANNOT special other D-Boyz from your hand also makes this an absolute shit card to draw multiples of. Unlike Tour Guide, you can always Neg 1 yourself to drop the other TGU from your hand and at least Tengu is a semi beat stick.
I realize that the Konami site has tried to juice this card with it's LOLWOMBOCOMBO examples, but in my opinion, this card is best used in a Grinder/Control deck. Many people remember Protect the Deko format, well this reminds me of that in the sense that it provides easy tribute fodder for Caius and sick creature swap plays.
I feel that Konami is being slick and not telling us something. I have this disturbing feeling that there is some Brok't Ass Rank 1 XYZ yet to be released and D-Boyz allows you to spam it consistently. Time will tell.