Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of nonland cards exiled this way without paying their mana costs.
NM-Mint Foil - $9.80
NM-Mint Foil Non English - $9.80
Lightly Played Foil - $9.40
Lightly Played Foil Non English - $9.40
Moderately Played Foil - $8.90
Moderately Played Foil Non English - $8.90
Heavily Played Foil - $7.90
Heavily Played Foil Non English - $7.90
Damaged Foil - $6.40
Damaged Foil Non English - $6.40