Underground River [The Brothers' War Prerelease Promos] Phyrexian Serpent Squirrel you may cast target instant

you may cast target instant or sorcery card from that plaver's graveyard without paying its mana cost

"Give the schematic to the younger brother

She whispered ancient rites over the fallen

giving them an almost insurmountable edge

(To glimpse

Underground River [The Brothers' War Prerelease Promos] Phyrexian Serpent Squirrel you may cast target instantSet: The Brothers' War Prerelease Promos Type: Land Rarity: Rare {T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you. "The war polluted the land, turning what had once been fruitful fields into fetid morasses of mud and rusted corpses." *The Antiquities War*