The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 counter it unless that player

counter it unless that player pays 3 life

target creature an opponent controls deals damage equal to its power to that player

Prize Card for the Unknown event at MagicCon Minneapolis

If this spell was cast from exile

the ore became iron

The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 counter it unless that playerSet: Modern Horizons Type: Legendary Creature Sliver Rarity: Mythic Cost: {W}{U}{B}{R}{G} Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Sliver spells you cast have cascade.