Forced Reaction: After the draw phase begins, reveal the top card of each player's deck. You may kneel your faction card to discard those cards.

"The greenseers were more than that. They... could wear the skins of any beast that flies or swims or crawls, and could look through the eyes of the weirwoods as well, and see the truth that lies beneath the world." Jojen Reed
Tim Durning
Favor of the Old Gods #79.

Link: Decklists


Rules FAQ

This reaction takes place during framework step 2.1, before either player draws their cards.