Shin, Third Form

Trample
When Shin, Third Form 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 Shin. Activate only as a sorcery.
(Etali, Primal Conqueror)