It's great at removing creatures with hexproof or creatures with indestructible such as Ulamog, the Ceaseless Hunger
These cards are not only some of the most memorable in the entire series, with most of the heroes duels revolving around them, but they are also often times far more useful than any other tool in their decks
One is to focus on the fact that for most Secret Lairs , you really aren't getting a big discount by buying them directly from Wizards compared to buying them on the secondary market a couple of months after they are released, so you're probably best off waiting and just picking up specific cards you want as singles, especially if you don't really care about all of the cards in a drop and just want one or two
Much like Gym Challenge, the first edition commands an impressive premium over the Unlimited version due to the allure of Shadowless cards
Its name is derived from the sounds it made during its creation, which some survivors believe to have been its attempt to cast a spell capable of killing Valgavoth