The First Sliver [Modern Horizons] Human Rogue Ally Whenever you sacrifice a green

Whenever you sacrifice a green creature

Set: The Brothers' War Retro Artifacts Type: Artifact Creature — Phyrexian Horror Rarity: Rare Cost: {2} As Phyrexian Revoker enters the battlefield

Whenever Ancient Gold Dragon deals combat damage to a player

" —*Song of All*

Set: World Championship Decks 1997 Type: Instant Rarity: Uncommon Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

The First Sliver [Modern Horizons] Human Rogue Ally Whenever you sacrifice a greenSet: 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.