This is a cEDH turbo/midrange combo deck that uses the free Rograkh as a zero-cost partner. Rograkh enables Silas Renn's colors and fuels free-commander spells, sacrifice outlets and creature-tap mana, while the deck races to assemble a compact win from a dense suite of tutors, fast mana and free interaction. Silas Renn adds a minor artifact-recursion angle on the heavy artifact mana base, but the real engine is the tutor-and-ritual chain into Thassa's Oracle or an Underworld Breach loop. How it wins: It tutors into Thassa's Oracle paired with Demonic Consultation or Tainted Pact to exile the library and win on the Oracle trigger, or it loops Underworld Breach with Lotus Petal and Brain Freeze to mill every opponent out, with storm copies and graveyard replays from rituals and Yawgmoth's Will finishing the job. Key roles: - Oracle consultation kill: Exiling or emptying the library before a devotion check resolves wins on the spot for as little as three mana. It is the deck's most efficient finish. (Thassa's Oracle, Demonic Consultation, Tainted Pact) - Breach storm loop: Escaping zero-cost artifacts and storm spells from the graveyard generates repeated casts, near-infinite mill and Treasure from magecraft. Grinding Station and graveyard-casting effects back it up as alternate routes. (Underworld Breach, Brain Freeze, Lotus Petal) - Tutor density: A wide spread of universal and instant tutors finds whichever combo half is missing. Some of them double as sacrifice outlets for the free kobold commander. (Demonic Tutor, Vampiric Tutor, Diabolic Intent) - Fast mana and rituals: Zero-cost moxen, rituals and one-shot burst mana let the deck threaten a win in the first few turns. Rograkh feeds creature sacrifice and tap effects for extra mana, and Legendary-dependent moxen read the commanders' colors. (Mox Diamond, Lion's Eye Diamond, Culling the Weak) - Free interaction and protection: Pitch counterspells, commander-conditional free spells and split-second stack tricks clear the way for the combo turn and stop rivals. Uncounterable effects and Discontinuity protect the win. (Force of Will, Fierce Guardianship, Deflecting Swat) - Card advantage engines: Tax-based draw and life-for-cards enchantments, plus copy-enchantment effects that duplicate them, keep the hand full of tutors and counters. (Rhystic Study, Necropotence, Mystic Remora)

Rograkh, Son of Rohgahh & Silas Renn, Seeker Adept decklist

• Arcane Signet
• Chrome Mox
• Fellwar Stone
• Grim Monolith
• Grinding Station
• Imposter Mech
• Lion's Eye Diamond
• Lotus Petal
• Mana Vault
• Mox Amber
• Mox Diamond
• Mox Opal
• Relic of Sauron
• Sol Ring
• Springleaf Drum
• Talisman of Dominance
• The One Ring
• Wishclaw Talisman
• Geist of Saint Thalia
• Hexing Squelcher
• Simian Spirit Guide
• Storm-Kiln Artist
• Subtlety
• Thassa's Oracle
• Wan Shi Tong, Librarian
• Copy Artifact
• Copy Enchantment
• Dress Down
• Mirrormade
• Mystic Remora
• Necropotence
• Rhystic Study
• Underworld Breach
• An Offer You Can't Refuse
• Borne Upon a Wind
• Brain Freeze
• Brainstorm
• Chain of Vapor
• Commandeer
• Culling the Weak
• Cyclonic Rift
• Dark Ritual
• Deflecting Swat
• Demonic Consultation
• Discontinuity
• Dramatic Reversal
• Fierce Guardianship
• Final Fortune
• Flare of Duplication
• Flusterstorm
• Force of Negation
• Force of Will
• Lim-Dûl's Vault
• Mental Misstep
• Mindbreak Trap
• Misdirection
• Mystical Tutor
• Narset's Reversal
• Pact of Negation
• Sink into Stupor
• Stifle
• Tainted Pact
• Trickbind
• Vampiric Tutor
• Ancient Tomb
• Arid Mesa
• Badlands
• Blood Crypt
• Bloodstained Mire
• City of Brass
• City of Traitors
• Command Tower
• Flooded Strand
• Gemstone Caverns
• Mana Confluence
• Marsh Flats
• Misty Rainforest
• Otawara, Soaring City
• Phyrexian Tower
• Polluted Delta
• Reliquary Tower
• Scalding Tarn
• Steam Vents
• Underground Sea
• Verdant Catacombs
• Volcanic Island
• Watery Grave
• Beseech the Mirror
• Demonic Tutor
• Diabolic Intent
• Gamble
• Gitaxian Probe
• Imperial Seal
• Mnemonic Betrayal
• Praetor's Grasp
• Rite of Flame
• Strike It Rich
• Yawgmoth's Will