@Nepycros Yes, all of those cards are destroyed. But it's not like all is lost the moment this card comes into play. You can prepare for it; if the opponent plays one, you'll probably not summon all of your creatures at once. You can use PC on it. You can try to wreck your opponent's field so that s/he's forced to use it on him/herself instead of you. The card is pretty expensive; even if it's the first thing the opponent tries to get out, you can at least play a few pillars and maybe one or two crucial creatures.
Getting delayed does sound interesting, though. I hope I'll get more opinions on this. xD
@EmeraldTiger I didn't consider that. xD I don't know any coding though, so I can't really respond.