Sin, Unending Cataclysm by test_ragost

Format: Commander

Commander: Sin, Unending Cataclysm

Bracket: 4

DeckCheck Threat Index: 48

Deck overview

This deck is a high-power Simic +1/+1 counters midrange strategy helmed by Sin, Unending Cataclysm. Rather than rushing commander deployment, the deck establishes an accelerated mana base on Turns 1–3 using dorks such as Delighted Halfling, Biophagus, and Gyre Sage. On Turn 4, it deploys compounding counter engines like Bristly Bill, Spine Sower, Innkeeper's Talent, and The Great Henge. Onset hits on Turn 5 through exponential power scaling via Kalonian Hydra or resolving Sin to devour counters and enter as an enormous trampling flyer. The deck closes on Turn 6 by granting unblockable attacks with Herald of Secret Streams, trampling with Pathbreaker Ibex, or wiping out life totals with Triumph of the Hordes. Plan defense is robust, leveraging Heroic Intervention and Fierce Guardianship to shrug off disruption, while Freed from the Real provides an incidental infinite mana outlet with Incubation Druid.

Decklist (100 cards)

• 1 Ancient Bronze Dragon
• 1 Ancient Tomb
• 1 Arwen, Weaver of Hope
• 1 Beast Within
• 1 Biophagus
• 1 Boseiju, Who Shelters All
• 1 Botanical Sanctum
• 1 Bred for the Hunt
• 1 Breeding Pool
• 1 Bristly Bill, Spine Sower
• 1 Cavern of Souls
• 1 Command Tower
• 1 Consecrated Sphinx
• 1 Cultivate
• 1 Cyclonic Rift
• 1 Decisive Denial
• 1 Delighted Halfling
• 1 Dreamroot Cascade
• 1 Enduring Curiosity
• 1 Evolution Witness
• 1 Fathom Mage
• 1 Fierce Guardianship
• 1 Flooded Grove
• 7 Forest
• 1 Forgotten Ancient
• 1 Freed from the Real
• 1 Gaea's Cradle
• 1 Glen Elendra Archmage
• 1 Green Sun's Zenith
• 1 Gyre Sage
• 1 Hardened Scales
• 1 Hedge Maze
• 1 Herald of Secret Streams
• 1 Heroic Intervention
• 1 Hinterland Harbor
• 1 Incubation Druid
• 1 Inkmoth Nexus
• 1 Innkeeper's Talent
• 1 Inspiring Call
• 3 Island
• 1 Kalonian Hydra
• 1 Kami of Whispered Hopes
• 1 Kodama of the West Tree
• 1 Kodama's Reach
• 1 Koma, Cosmos Serpent
• 1 Krosan Grip
• 1 Lightning Greaves
• 1 Mana Drain
• 1 Master Biomancer
• 1 Mistrise Village
• 1 Misty Rainforest
• 1 Mosswort Bridge
• 1 Mutational Advantage
• 1 Mycoloth
• 1 Necklace of Girion
• 1 Nesting Grounds
• 1 Nykthos, Shrine to Nyx
• 1 Otawara, Soaring City
• 1 Ouroboroid
• 1 Pathbreaker Ibex
• 1 Rain-Slicked Copse
• 1 Ram Through
• 1 Rejuvenating Springs
• 1 Repulsive Mutation
• 1 Rhystic Study
• 1 Rogue's Passage
• 1 Selvala, Heart of the Wilds
• 1 Simic Ascendancy
• 1 Simic Signet
• 1 Sin, Unending Cataclysm
• 1 Skyserpent Seeker
• 1 Sodden Verdure
• 1 Sol Ring
• 1 Super State
• 1 Surestrike Trident
• 1 Surrak and Goreclaw
• 1 Tam, Mindful First-Year
• 1 Tamiyo's Safekeeping
• 1 The Great Henge
• 1 The One Ring
• 1 The Ozolith
• 1 Triumph of the Hordes
• 1 Tropical Island
• 1 Twenty-Toed Toad
• 1 Vigor
• 1 Vorinclex, Monstrous Raider
• 1 Walking Ballista
• 1 Waterlogged Grove
• 1 Wave Goodbye
• 1 Willowrush Verge
• 1 Worldly Tutor
• 1 Yavimaya Coast