The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 or even its guilds

or even its guilds

Set: Invasion Type: Enchantment Rarity: Rare Cost: {3}{U} Domain — Creatures can't attack you unless their controller pays {X} for each creature they control that's attacking you

If this spell was cast from exile

Set: Secret Lair Drop Series Type: Land Rarity: Rare Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain

The First Sliver (Retro Foil Etched) [Modern Horizons] SM187 or even its guildsSet: 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.