Oona, Queen of the Fae [Secret Lair Drop Series] Double Masters Legend has it that Serpents

Legend has it that Serpents used to be bigger

Set: Modern Masters Type: Artifact Creature — Beast Rarity: Rare Cost: {2} Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager

so it shall be

Set: Double Masters Type: Artifact Creature — Construct Rarity: Rare Cost: {5} {T}

Oona, Queen of the Fae [Secret Lair Drop Series] Double Masters Legend has it that SerpentsSet: Secret Lair Drop Series Type: Legendary Creature Faerie Wizard Rarity: Mythic Cost: {3}{U B}{U B}{U B} Flying {X}{U B}: Choose a color. Target opponent exiles the top X cards of their library. For each card of the chosen color exiled this way, create a 1 1 blue and black Faerie Rogue creature token with flying.