The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 Prize Card for the Unknown

Prize Card for the Unknown event at MagicCon Minneapolis

or even its guilds

If this spell was cast from exile

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

Set: Gym Heroes Unlimited Type: Water Rarity: Uncommon Retreat cost: Colorless

The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 Prize Card for the UnknownSet: 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.