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.
Near Mint - $21.400
Lightly Played - $17.100
Moderately Played - $15.000
Heavily Played - $12.800
Damaged - $10.700
Near Mint Spanish - $21.400
Lightly Played Spanish - $17.100
Moderately Played Spanish - $15.000
Heavily Played Spanish - $12.800
Damaged Spanish - $10.700