Its third chapter and last ability is a board wipe (yes, in blue!), which destroys all creatures and replaces them with 2/2 Phyrexians
March of the Machine Jumpstart Boosters contain Jumpstart cards based around five new themes, one for each mana color: Brood White Overachiever Blue Expendable Black Reinforcement Red Buff Green March of the Machine Jumpstart is compatible with any previously released Jumpstart product, meaning you can encourage new players to mix-and-match with previous set Jumpstart packs, or even packs from Jumpstart 2022 to make even wilder combinations
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
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