Primo Fractal Rock by H3rr0n

Format: Commander

Commander: Primo, the Unbounded

Bracket: 2

Deck overview

This is a Simic +1/+1 counters and token-swarm deck built around Primo, the Unbounded. The core engine is 21x Slime Against Humanity, which creates trampling Ooze tokens whose power scales with the number of Slimes in graveyard and exile. Because those Oozes have base power 0, every point of combat damage they deal triggers Primo to create a Fractal token of matching size - effectively doubling the board. Branching Evolution, The Earth Crystal, and Adrix and Nev, Twincasters multiply both counters and tokens, while Herald of Secret Streams makes the counter-laden army unblockable. Card flow comes from combat triggers like Toski, Bearer of Secrets, Ohran Frostfang, and Bred for the Hunt, plus Terrasymbiosis. The deck wins through one overwhelming combat step, with Wave Goodbye and Season of Weaving providing one-sided board control. It is a patient, value-building deck with no fast combos.

Decklist (100 cards)

  • 1 Adrix and Nev, Twincasters
  • 1 An Offer You Can't Refuse
  • 1 Arcane Denial
  • 1 Arcane Signet
  • 1 Baxter, Fly in the Ointment
  • 1 Birds of Paradise
  • 1 Boseiju, Who Endures
  • 1 Branching Evolution
  • 1 Bred for the Hunt
  • 1 Breeding Pool
  • 1 Command Tower
  • 1 Counterspell
  • 1 Curiosity Crafter
  • 1 Deekah, Fractal Theorist
  • 1 Disciple of Freyalise // Garden of Freyalise
  • 1 Dreamroot Cascade
  • 1 Elvish Mystic
  • 1 Emerald Medallion
  • 1 Exotic Orchard
  • 1 Fabled Passage
  • 1 Farseek
  • 1 Flooded Grove
  • 1 Fog
  • 9 Forest
  • 1 Fyndhorn Elves
  • 1 Hedge Maze
  • 1 Herald of Secret Streams
  • 1 Heroic Intervention
  • 1 Hinterland Harbor
  • 1 Hydroid Krasis
  • 1 I Hate Mondays
  • 1 Inspiring Call
  • 5 Island
  • 1 Llanowar Elves
  • 1 Nature's Lore
  • 1 Nev, the Practical Dean
  • 1 Ohran Frostfang
  • 1 Otawara, Soaring City
  • 1 Pongify
  • 1 Primo, the Unbounded
  • 1 Prismatic Vista
  • 1 Rampant Growth
  • 1 Rapid Hybridization
  • 1 Ray Fillet, Wave Warrior
  • 1 Rejuvenating Springs
  • 1 Reliquary Tower
  • 1 Ripples of Potential
  • 1 Rishkar, Peema Renegade
  • 1 Season of Weaving
  • 1 Secret Tunnel
  • 21 Slime Against Humanity
  • 1 Sodden Verdure
  • 1 Sol Ring
  • 1 Sphere Grid
  • 1 Striding Shotcaller // Run the Play
  • 1 Swan Song
  • 1 Talisman of Curiosity
  • 1 Terrasymbiosis
  • 1 The Earth Crystal
  • 1 Three Visits
  • 1 Toski, Bearer of Secrets
  • 1 Turbulent Wilderness
  • 1 Vineglimmer Snarl
  • 1 Waterlogged Grove
  • 1 Wave Goodbye
  • 1 Willowrush Verge
  • 1 Yavimaya Coast
  • 1 Yavimaya, Cradle of Growth