I finally managed to buy the deck, and am quite satisfied with it's performance. It does quite well in both PVP and Top50. Didn't find the time to duel with it, yet.
Having lacked the sixth air quantum in some of the previous games on second turn more often than expected, I probably will upgrade the flying weapons, as soon as I get the coins. Thanks for that tip!
I do think, too, that the shields are quite strong cards, but I don't think that this is one of the decks in which they excel: By the time a protected shield can be played, especially if there were one or two Pulverizers played before, the game is most likely to be already decided. And the combination with EE for creature control, isn't that good for the Diamond Shield, too: Small monsters are taken out by the EE anyway, while larger Enemies can pass the shield hands down. Nonetheless, there is nothing to take 'em out for...