Etali, Primal Conqueror

Trample
When Etali, Primal Conqueror enters the
battlefield, each player exiles cards
from the top of their library until they exile a
nonland card. You may cast any number of spells
from among the nonland cards exiled
this way without paying their mana costs.
{9}{p/g}: Transform Etali. Activate only as a sorcery.