Unwinding Clock (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Rat Wizard then reveals the top card

then reveals the top card of their library

Their bodies rotted

If that card has converted mana cost 3 or less

Set: Ixalan Prerelease Promos Type: Creature — Merfolk Warrior Rarity: Rare Cost: {3}{U} Creatures you control with +1/+1 counters on them can't be blocked

Unwinding Clock (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] Rat Wizard then reveals the top cardSet: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {4} Untap all artifacts you control during each other player's untap step. "Heat from the rotating mechanism is captured and converted into energy, allowing it to operate in perpetuity." *Rusko's Compendium of Clockwork"