Whenever Tyrannosaurus Rex attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.
NM-Mint Foil - $29.90
Lightly Played Foil - $28.40
Moderately Played Foil - $26.90
Heavily Played Foil - $23.90
Damaged Foil - $19.50
NM-Mint Foil Non English - $29.90
Lightly Played Foil Non English - $28.40
Moderately Played Foil Non English - $26.90
Heavily Played Foil Non English - $23.90
Damaged Foil Non English - $19.50