Underground River (Promo Pack) [The Brothers' War Promos] Fungus Demon and/or Ally cards from among

and/or Ally cards from among them and put them into your hand

I have an empire of knowledge

Set: Streets of New Capenna Commander Type: Enchantment Rarity: Rare Cost: {3}{R}{R} When Rain of Riches enters the battlefield

sacrifice an untapped Mountain instead

Sacrifice a Forest or Plains: Search your library for a land card

Underground River (Promo Pack) [The Brothers' War Promos] Fungus Demon and/or Ally cards from amongSet: The Brothers' War Promos Type: Land 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