Fluxing Energies

Exile the top two cards of target player's library
face down. Return one of them onto the
battlefield entrapped under your control and the
other into their owner's graveyard. (Put that card
onto the battlefield face down as a 0/1 Mine artifact creature with defender and "When this creature would
die, instead turn it face up and exile it. If it is
a nonland card, cast it without paying its mana cost." Players may not look at the card while it is face
down.)