Its third chapter and last ability is a board wipe (yes, in blue!), which destroys all creatures and replaces them with 2/2 Phyrexians
If that permanent is destroyed this way, its controller exiles cards from the top of their library until they exile a nonland card, then they may cast that card without paying its mana cost
Building Your Collection Over Time The best Pokemon card collections are built gradually, with intention and patience
A drop that includes three board wipes in Day of Judgment, Star of Extinction, and Toxic Deluge would already be frightening, but adding in an extra turn spell in Temporal Extortion, and a way to exile key cards from your opponents' decks with Praetor's Grasp makes this by far the meanest Secret Lair drop we've ever seen
Needless to say, if you do, youre incredibly lucky