The First Sliver (Retro) [Modern Horizons] BT7-117 Set: Gym Challenge Unlimited Type:

Set: Gym Challenge Unlimited Type: Psychic Rarity: Uncommon

It’s up to you to survive the adventure and escort it home safely

Set: Black & White: Base Set Type: Fire Rarity: Promo Retreat cost: Colorless

or there are no Battle Cards in your Battle Area

The First Sliver (Retro) [Modern Horizons] BT7-117 Set: Gym Challenge Unlimited Type:Set: 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. A humble appearance belies a master's skill.