Cayth's Infinite Assembly Line by Monomanamaniac

Format: Commander

Commander: Cayth, Famed Mechanist

Bracket: 4

DeckCheck Threat Index: 63

Deck overview

This deck is an optimized Jeskai artifact combo strategy built around fast mana, dense tutoring, and compact game-winning loops. While Cayth, Famed Mechanist provides utility and enables persist loops with Lesser Masticore, the primary plan focuses on assembling noncreature artifact engines. The deck accelerates in the opening turns using fast mana rocks like Sol Ring, Mana Vault, and Chrome Mox, then uses tutors such as Whir of Invention, Fabricate, and Enlightened Tutor to assemble Isochron Scepter with Dramatic Reversal or Mystic Forge with Sensei's Divining Top. Usable assembly and critical onset occur reliably on Turn 4. The deck protects its winning turn using Silence, Fierce Guardianship, and Pact of Negation, then immediately converts infinite mana into 120 lethal damage across the table using Walking Ballista or Aetherflux Reservoir with zero opponent response cycles.

Decklist (100 cards)

  • 1 Academy Ruins
  • 1 Adarkar Wastes
  • 1 Aetherflux Reservoir
  • 1 An Offer You Can't Refuse
  • 1 Ancient Den
  • 1 Ancient Tomb
  • 1 Arcane Signet
  • 1 Arid Mesa
  • 1 Ashnod's Altar
  • 1 Birgi, God of Storytelling // Harnfel, Horn of Bounty
  • 1 Buried Ruin
  • 1 Cayth, Famed Mechanist
  • 1 Chrome Mox
  • 1 City of Brass
  • 1 Clock of Omens
  • 1 Command Tower
  • 1 Cyclonic Rift
  • 1 Dramatic Reversal
  • 1 Emry, Lurker of the Loch
  • 1 Enlightened Tutor
  • 1 Enthusiastic Mechanaut
  • 1 Esper Sentinel
  • 1 Etherium Sculptor
  • 1 Fabricate
  • 1 Fierce Guardianship
  • 1 Flooded Strand
  • 1 Gamble
  • 1 Gemstone Caverns
  • 1 Glimmervoid
  • 1 Great Furnace
  • 1 Hallowed Fountain
  • 1 Helm of Awakening
  • 1 Intruder Alarm
  • 1 Inventors' Fair
  • 2 Island
  • 1 Isochron Scepter
  • 1 Jhoira, Weatherlight Captain
  • 1 Krark-Clan Ironworks
  • 1 Lesser Masticore
  • 1 Liberator, Urza's Battlethopter
  • 1 Lotus Petal
  • 1 Mana Confluence
  • 1 Mana Drain
  • 1 Mana Vault
  • 1 Manifold Key
  • 1 Memnite
  • 1 Moonsilver Key
  • 1 Mountain
  • 1 Mox Amber
  • 1 Mox Opal
  • 1 Muddle the Mixture
  • 1 Myr Retriever
  • 1 Mystic Forge
  • 1 Mystical Tutor
  • 1 Nick Valentine, Private Eye
  • 1 Ornithopter
  • 1 Oswald Fiddlebender
  • 1 Otawara, Soaring City
  • 1 Pact of Negation
  • 1 Paradise Mantle
  • 1 Phyrexian Altar
  • 1 Phyrexian Metamorph
  • 1 Pinnacle Emissary
  • 1 Plains
  • 1 Plateau
  • 1 Ravenous Robots
  • 1 Reflecting Pool
  • 1 Sacred Foundry
  • 1 Scalding Tarn
  • 1 Scrap Trawler
  • 1 Scroll Rack
  • 1 Seat of the Synod
  • 1 Sensei's Divining Top
  • 1 Shivan Reef
  • 1 Silence
  • 1 Skullclamp
  • 1 Sol Ring
  • 1 Spellskite
  • 1 Spire of Industry
  • 1 Springleaf Drum
  • 1 Steam Vents
  • 1 Stridehangar Automaton
  • 1 Surge Conductor
  • 1 Swan Song
  • 1 Swords to Plowshares
  • 1 Teferi's Protection
  • 1 Tezzeret, Cruel Captain
  • 1 The One Ring
  • 1 Treasure Vault
  • 1 Tundra
  • 1 Unwinding Clock
  • 1 Urza's Saga
  • 1 Urza, Lord High Artificer
  • 1 Uthros Research Craft
  • 1 Uthros, Titanic Godcore
  • 1 Volcanic Island
  • 1 Voltaic Key
  • 1 Walking Ballista
  • 1 Whir of Invention