Whenever Etali 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 Foil - £0.80
Lightly Played Foil - £0.70
Moderately Played Foil - £0.60
Heavily Played Foil - £0.40
Damaged Foil - £0.30
Near Mint Foil Non English - £0.80
Lightly Played Foil Non English - £0.70
Moderately Played Foil Non English - £0.60
Heavily Played Foil Non English - £0.40
Damaged Foil Non English - £0.30