Sure, its not an attack for every situation and requires a lot of setup, but if used at the right time with cards that get Dreppy out quickly, you can catch your opponent off-guard and maybe even take multiple Prize cards
This strategy can be more expensive monetarily, but considering you've already spent $40 on a Secret Lair drop (or upwards of $30 buying Iron Man on the secondary market), we're going to assume that money isn't a huge barrier for you
Brothers Yamazaki allowed you to have two of the same legendary creatures in play at the same time
For those decks where it was castable and removal was called for, Vindicate often made it into Extended and even as far as Legacy
Each pack contains 100 sleeves, enough to sleeve your entire Magic deck including your sideboard
Higher attack power reduces Ghaltas casting cost, so unleash her as soon as possible and trample the competition