Snapcaster Mage (Regional PTQ) [Pro Tour Promos] Shadows over Innistrad Dauthi Slayer attacks each combat

Dauthi Slayer attacks each combat if able

I'd have told you what it was

Set: Archenemy: Nicol Bolas Type: Legendary Artifact — Equipment Rarity: Rare Cost: {2} Equipped creature gets +1/+1

Set: New Phyrexia Type: Creature — Phyrexian Horror Rarity: Mythic Cost: {B}{B}{B}{B} Trample

Set: From the Vault: Exiled Type: Enchantment Rarity: Mythic Cost: {B}{B}{B} Skip your draw step

Snapcaster Mage (Regional PTQ) [Pro Tour Promos] Shadows over Innistrad Dauthi Slayer attacks each combatSet: Pro Tour Promos Type: Creature Human Wizard Rarity: Mythic Cost: {1}{U} Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)