Cecil Harvey // Silas Renn, Seeker Adept (Commander)

Harvey McGuinness
Mar 11, 2026
Building RogSi (Rograkh and Silas Renn) for cEDH
Want to see what's under the hood of one of the best cEDH decks? Then check out this deck tech for RogSi (Rograkh and Silas Renn).
Deck Filters
Archidekt
Commander Spellbook
Moxfield
Scryfall
Mana Sculpt
4.8%inclusion1 decks21 decks
2%synergy
Eclipsed Steppe
4.5%inclusion1 decks22 decks
2%synergy
High Synergy Cards
Etherium Sculptor
51%inclusion82 decks162 decks
42%synergy
Seat of the Synod
49%inclusion80 decks162 decks
40%synergy
Esper Sentinel
65%inclusion106 decks162 decks
38%synergy
Ancient Den
46%inclusion75 decks162 decks
38%synergy
Vault of Whispers
45%inclusion73 decks162 decks
37%synergy
Inventors' Fair
41%inclusion66 decks162 decks
36%synergy
Urza's Saga
48%inclusion77 decks162 decks
36%synergy
Fabricate
40%inclusion65 decks162 decks
36%synergy
Sensei's Divining Top
44%inclusion72 decks162 decks
35%synergy
Emry, Lurker of the Loch
40%inclusion64 decks162 decks
34%synergy
Top Cards
Swords to Plowshares
69%inclusion112 decks162 decks
1%synergy
Mystic Remora
48%inclusion77 decks162 decks
27%synergy
Swan Song
44%inclusion72 decks162 decks
24%synergy
Path to Exile
40%inclusion64 decks162 decks
-3%synergy
Baleful Strix
38%inclusion62 decks162 decks
17%synergy
Phyrexian Metamorph
37%inclusion60 decks162 decks
29%synergy
Skullclamp
36%inclusion59 decks162 decks
28%synergy
Dark Ritual
36%inclusion58 decks162 decks
16%synergy
An Offer You Can't Refuse
34%inclusion55 decks162 decks
6%synergy
The One Ring
34%inclusion55 decks162 decks
21%synergy
Game Changers
Enlightened Tutor
51%inclusion83 decks162 decks
32%synergy
Demonic Tutor
50%inclusion81 decks162 decks
30%synergy
Rhystic Study
49%inclusion80 decks162 decks
19%synergy
Cyclonic Rift
44%inclusion71 decks162 decks
21%synergy
Vampiric Tutor
41%inclusion67 decks162 decks
25%synergy
Smothering Tithe
40%inclusion64 decks162 decks
9%synergy
Fierce Guardianship
40%inclusion64 decks162 decks
19%synergy
Mana Vault
39%inclusion63 decks162 decks
30%synergy
Chrome Mox
38%inclusion61 decks162 decks
29%synergy
Force of Will
36%inclusion59 decks162 decks
24%synergy
Creatures
Sai, Master Thopterist
33%inclusion53 decks162 decks
27%synergy
Thassa's Oracle
30%inclusion49 decks162 decks
21%synergy
Urza, Lord High Artificer
30%inclusion48 decks162 decks
24%synergy
Grand Abolisher
28%inclusion46 decks162 decks
14%synergy
Lotho, Corrupt Shirriff
27%inclusion44 decks162 decks
10%synergy
Foundry Inspector
27%inclusion44 decks162 decks
21%synergy
Voice of Victory
26%inclusion30 decks116 decks
17%synergy
Opposition Agent
25%inclusion40 decks162 decks
17%synergy
Drannith Magistrate
23%inclusion38 decks162 decks
16%synergy
Ethersworn Canonist
23%inclusion37 decks162 decks
21%synergy
Orcish Bowmasters
21%inclusion34 decks162 decks
11%synergy
Thought Monitor
20%inclusion32 decks162 decks
15%synergy
Spellskite
20%inclusion32 decks162 decks
17%synergy
Dauthi Voidwalker
19%inclusion31 decks162 decks
14%synergy
Displacer Kitten
18%inclusion29 decks162 decks
11%synergy
Solemn Simulacrum
17%inclusion28 decks162 decks
4%synergy
Scrap Trawler
17%inclusion28 decks162 decks
16%synergy
Walking Ballista
17%inclusion28 decks162 decks
15%synergy
Marionette Master
17%inclusion28 decks162 decks
15%synergy
Faerie Mastermind
17%inclusion27 decks162 decks
7%synergy
Myr Retriever
17%inclusion27 decks162 decks
16%synergy
Oswald Fiddlebender
15%inclusion24 decks162 decks
14%synergy
Armix, Filigree Thrasher
15%inclusion24 decks162 decks
14%synergy
Ranger-Captain of Eos
14%inclusion23 decks162 decks
8%synergy
Teshar, Ancestor's Apostle
14%inclusion23 decks162 decks
13%synergy
Notion Thief
14%inclusion23 decks162 decks
8%synergy
Imotekh the Stormlord
14%inclusion22 decks162 decks
13%synergy
The Reality Chip
14%inclusion22 decks162 decks
11%synergy
Forensic Gadgeteer
14%inclusion22 decks162 decks
11%synergy
Trinket Mage
14%inclusion22 decks162 decks
12%synergy
Kappa Cannoneer
13%inclusion21 decks162 decks
9%synergy
Arcbound Ravager
13%inclusion21 decks162 decks
13%synergy
Lurrus of the Dream-Den
12%inclusion20 decks162 decks
11%synergy
Delney, Streetwise Lookout
12%inclusion19 decks162 decks
4%synergy
Necron Deathmark
12%inclusion19 decks162 decks
11%synergy
Noxious Gearhulk
12%inclusion19 decks162 decks
8%synergy
Hope of Ghirapur
11%inclusion18 decks162 decks
11%synergy
Psychomancer
11%inclusion18 decks162 decks
11%synergy
Tribute Mage
11%inclusion18 decks162 decks
10%synergy
Archivist of Oghma
10%inclusion17 decks162 decks
4%synergy
Bastion Protector
10%inclusion17 decks162 decks
8%synergy
Spellseeker
10%inclusion17 decks162 decks
9%synergy
Kambal, Consul of Allocation
10%inclusion17 decks162 decks
1%synergy
Lady Octopus, Inspired Inventor
10%inclusion8 decks78 decks
10%synergy
Triarch Praetorian
10%inclusion16 decks162 decks
10%synergy
Gold-Forged Thopteryx
10%inclusion16 decks162 decks
8%synergy
Sharuum the Hegemon
9.3%inclusion15 decks162 decks
7%synergy
Serra Ascendant
9.3%inclusion15 decks162 decks
5%synergy
Belisarius Cawl
9.3%inclusion15 decks162 decks
8%synergy
Tataru Taru
9.2%inclusion9 decks98 decks
1%synergy
Instants
Counterspell
33%inclusion54 decks162 decks
-9%synergy
Dovin's Veto
32%inclusion52 decks162 decks
6%synergy
Force of Negation
31%inclusion51 decks162 decks
20%synergy
Silence
31%inclusion51 decks162 decks
21%synergy
Mystical Tutor
31%inclusion50 decks162 decks
20%synergy
Mana Drain
29%inclusion47 decks162 decks
12%synergy
Tainted Pact
28%inclusion46 decks162 decks
22%synergy
Demonic Consultation
28%inclusion46 decks162 decks
21%synergy
Flusterstorm
28%inclusion45 decks162 decks
20%synergy
Deadly Rollick
27%inclusion44 decks162 decks
12%synergy
Mental Misstep
25%inclusion40 decks162 decks
18%synergy
Void Rend
25%inclusion40 decks162 decks
-10%synergy
Whir of Invention
24%inclusion39 decks162 decks
21%synergy
Pact of Negation
23%inclusion37 decks162 decks
15%synergy
Anguished Unmaking
22%inclusion35 decks162 decks
-4%synergy
Brainstorm
20%inclusion33 decks162 decks
4%synergy
Mindbreak Trap
18%inclusion29 decks162 decks
11%synergy
Teferi's Protection
17%inclusion28 decks162 decks
1%synergy
Chain of Vapor
17%inclusion28 decks162 decks
14%synergy
Dispatch
17%inclusion27 decks162 decks
12%synergy
Entomb
17%inclusion27 decks162 decks
10%synergy
Muddle the Mixture
16%inclusion26 decks162 decks
12%synergy
Cabal Ritual
15%inclusion25 decks162 decks
12%synergy
Ad Nauseam
14%inclusion23 decks162 decks
12%synergy
Sink into Stupor
14%inclusion22 decks162 decks
1%synergy
Dramatic Reversal
14%inclusion22 decks162 decks
12%synergy
Negate
12%inclusion20 decks162 decks
-4%synergy
Borne Upon a Wind
12%inclusion20 decks162 decks
8%synergy
Deadly Dispute
10%inclusion17 decks162 decks
7%synergy
Arcane Denial
10%inclusion17 decks162 decks
-10%synergy
Generous Gift
10%inclusion16 decks162 decks
-4%synergy
Intuition
9.3%inclusion15 decks162 decks
8%synergy
Culling the Weak
9.3%inclusion15 decks162 decks
8%synergy
Utter End
9.3%inclusion15 decks162 decks
3%synergy
Spell Pierce
9.3%inclusion15 decks162 decks
7%synergy
Into the Flood Maw
9.0%inclusion14 decks156 decks
5%synergy
Angel's Grace
8.6%inclusion14 decks162 decks
6%synergy
Lim-Dûl's Vault
8.0%inclusion13 decks162 decks
5%synergy
Dispel
7.4%inclusion12 decks162 decks
4%synergy
Strix Serenade
6.8%inclusion11 decks162 decks
3%synergy
Waterlogged Teachings
5.6%inclusion9 decks162 decks
1%synergy
Delay
5.6%inclusion9 decks162 decks
4%synergy
Sorceries
Toxic Deluge
30%inclusion48 decks162 decks
10%synergy
Imperial Seal
25%inclusion40 decks162 decks
18%synergy
Sevinne's Reclamation
22%inclusion36 decks162 decks
13%synergy
Diabolic Intent
20%inclusion33 decks162 decks
16%synergy
Reanimate
19%inclusion30 decks162 decks
2%synergy
Windfall
14%inclusion23 decks162 decks
1%synergy
Damn
14%inclusion22 decks162 decks
-7%synergy
Transmute Artifact
14%inclusion22 decks162 decks
12%synergy
Reshape
12%inclusion20 decks162 decks
12%synergy
Supreme Verdict
12%inclusion19 decks162 decks
-3%synergy
Farewell
11%inclusion18 decks162 decks
-1%synergy
Praetor's Grasp
10%inclusion17 decks162 decks
8%synergy
Beseech the Mirror
10%inclusion17 decks162 decks
7%synergy
Gitaxian Probe
10%inclusion16 decks162 decks
8%synergy
Ponder
9.3%inclusion15 decks162 decks
0%synergy
Thoughtcast
9.3%inclusion15 decks162 decks
6%synergy
Mnemonic Betrayal
9.3%inclusion15 decks162 decks
7%synergy
Organic Extinction
9.3%inclusion15 decks162 decks
6%synergy
Soul Transfer
8.0%inclusion13 decks162 decks
8%synergy
Yawgmoth's Will
8.0%inclusion13 decks162 decks
7%synergy
Preordain
7.4%inclusion12 decks162 decks
3%synergy
Grim Tutor
7.4%inclusion12 decks162 decks
3%synergy
Merciless Eviction
6.8%inclusion11 decks162 decks
5%synergy
Fortuitous Find
6.8%inclusion11 decks162 decks
7%synergy
Damnation
6.2%inclusion10 decks162 decks
4%synergy
Singularity Rupture
5.4%inclusion5 decks92 decks
3%synergy
Utility Artifacts
Bolas's Citadel
30%inclusion49 decks162 decks
21%synergy
Thopter Foundry
30%inclusion49 decks162 decks
29%synergy
Wishclaw Talisman
28%inclusion46 decks162 decks
21%synergy
Sword of the Meek
25%inclusion40 decks162 decks
23%synergy
Cranial Plating
24%inclusion39 decks162 decks
20%synergy
Lightning Greaves
24%inclusion39 decks162 decks
1%synergy
Mishra's Bauble
22%inclusion36 decks162 decks
21%synergy
Time Sieve
20%inclusion32 decks162 decks
14%synergy
Aetherflux Reservoir
19%inclusion31 decks162 decks
11%synergy
Krark-Clan Ironworks
19%inclusion31 decks162 decks
18%synergy
Mystic Forge
17%inclusion27 decks162 decks
13%synergy
Aether Spellbomb
15%inclusion24 decks162 decks
14%synergy
Unwinding Clock
14%inclusion23 decks162 decks
10%synergy
Nihil Spellbomb
14%inclusion22 decks162 decks
13%synergy
Urza's Bauble
13%inclusion21 decks162 decks
12%synergy
Swiftfoot Boots
13%inclusion21 decks162 decks
-11%synergy
Isochron Scepter
13%inclusion21 decks162 decks
11%synergy
Whispersilk Cloak
12%inclusion20 decks162 decks
10%synergy
Wayfarer's Bauble
12%inclusion19 decks162 decks
4%synergy
Ashnod's Altar
12%inclusion19 decks162 decks
6%synergy
Executioner's Capsule
10%inclusion17 decks162 decks
10%synergy
Thunderhawk Gunship
10%inclusion17 decks162 decks
9%synergy
Manifold Key
10%inclusion16 decks162 decks
9%synergy
Soul-Guide Lantern
9.3%inclusion15 decks162 decks
8%synergy
Sculpting Steel
8.6%inclusion14 decks162 decks
6%synergy
Shorikai, Genesis Engine
8.6%inclusion14 decks162 decks
5%synergy
Tormod's Crypt
8.0%inclusion13 decks162 decks
7%synergy
Assault Suit
8.0%inclusion13 decks162 decks
8%synergy
Nettlecyst
7.4%inclusion12 decks162 decks
4%synergy
Voltaic Key
7.4%inclusion12 decks162 decks
7%synergy
Mindslaver
7.4%inclusion12 decks162 decks
7%synergy
Mycosynth Lattice
7.4%inclusion12 decks162 decks
6%synergy
Welding Jar
7.4%inclusion12 decks162 decks
7%synergy
Repurposing Bay
7.1%inclusion9 decks127 decks
6%synergy
Vexing Bauble
6.8%inclusion11 decks162 decks
5%synergy
Smuggler's Copter
6.8%inclusion11 decks162 decks
6%synergy
Grinding Station
6.2%inclusion10 decks162 decks
5%synergy
Shadowspear
6.2%inclusion10 decks162 decks
3%synergy
Mnemonic Sphere
6.2%inclusion10 decks162 decks
6%synergy
Gonti's Aether Heart
6.2%inclusion10 decks162 decks
6%synergy
Imposter Mech
6.2%inclusion10 decks162 decks
5%synergy
Rings of Brighthearth
6.2%inclusion10 decks162 decks
5%synergy
Bident of Thassa
6.2%inclusion10 decks162 decks
-2%synergy
Simulacrum Synthesizer
6.2%inclusion10 decks162 decks
4%synergy
Mukotai Soulripper
5.6%inclusion9 decks162 decks
5%synergy
Nevinyrral's Disk
5.6%inclusion9 decks162 decks
5%synergy
Darksteel Forge
5.6%inclusion9 decks162 decks
4%synergy
Uthros Research Craft
5.6%inclusion5 decks90 decks
4%synergy
Astrologian's Planisphere
5.1%inclusion5 decks98 decks
2%synergy
Enchantments
Thopter Spy Network
20%inclusion32 decks162 decks
15%synergy
Blind Obedience
19%inclusion31 decks162 decks
7%synergy
Biotransference
14%inclusion23 decks162 decks
13%synergy
Necropotence
13%inclusion21 decks162 decks
6%synergy
The Flesh Is Weak
12%inclusion19 decks162 decks
11%synergy
Propaganda
8.0%inclusion13 decks162 decks
-21%synergy
Phyrexian Scriptures
7.4%inclusion12 decks162 decks
7%synergy
Ripples of Undeath
6.2%inclusion10 decks162 decks
3%synergy
Efficient Construction
6.2%inclusion10 decks162 decks
5%synergy
Mirrodin Besieged
5.6%inclusion9 decks162 decks
4%synergy
Planeswalkers
Tezzeret the Seeker
32%inclusion52 decks162 decks
30%synergy
Teferi, Time Raveler
19%inclusion30 decks162 decks
10%synergy
Tezzeret, Master of the Bridge
15%inclusion24 decks162 decks
11%synergy
Tezzeret, Cruel Captain
12%inclusion11 decks93 decks
10%synergy
Narset, Parter of Veils
8.0%inclusion13 decks162 decks
4%synergy
Tezzeret, Agent of Bolas
6.8%inclusion11 decks162 decks
6%synergy
Karn, the Great Creator
6.2%inclusion10 decks162 decks
5%synergy
Utility Lands
Otawara, Soaring City
38%inclusion61 decks162 decks
19%synergy
Ancient Tomb
35%inclusion57 decks162 decks
23%synergy
Academy Ruins
33%inclusion54 decks162 decks
27%synergy
Buried Ruin
20%inclusion33 decks162 decks
17%synergy
Darksteel Citadel
19%inclusion31 decks162 decks
13%synergy
Reliquary Tower
19%inclusion30 decks162 decks
-15%synergy
Urborg, Tomb of Yawgmoth
19%inclusion30 decks162 decks
5%synergy
Rogue's Passage
18%inclusion29 decks162 decks
8%synergy
Takenuma, Abandoned Mire
15%inclusion24 decks162 decks
8%synergy
Minamo, School at Water's Edge
14%inclusion22 decks162 decks
10%synergy
Bojuka Bog
12%inclusion20 decks162 decks
-14%synergy
Treasure Vault
12%inclusion20 decks162 decks
11%synergy
Uthros, Titanic Godcore
11%inclusion10 decks92 decks
8%synergy
Eiganjo, Seat of the Empire
10%inclusion17 decks162 decks
5%synergy
Emergence Zone
8.0%inclusion13 decks162 decks
6%synergy
Archway of Innovation
6.8%inclusion11 decks162 decks
3%synergy
City of Traitors
6.8%inclusion11 decks162 decks
6%synergy
Tolaria West
6.2%inclusion10 decks162 decks
6%synergy
Phyrexian Tower
5.6%inclusion9 decks162 decks
2%synergy
Mech Hangar
5.6%inclusion9 decks162 decks
5%synergy
Mistrise Village
5.2%inclusion6 decks115 decks
2%synergy
Ishgard, the Holy See
5.1%inclusion5 decks98 decks
2%synergy
Mana Artifacts
Sol Ring
94%inclusion153 decks162 decks
5%synergy
Arcane Signet
88%inclusion143 decks162 decks
1%synergy
Talisman of Progress
58%inclusion94 decks162 decks
14%synergy
Talisman of Dominance
56%inclusion91 decks162 decks
6%synergy
Mox Opal
49%inclusion79 decks162 decks
40%synergy
Talisman of Hierarchy
49%inclusion79 decks162 decks
4%synergy
Lotus Petal
48%inclusion77 decks162 decks
37%synergy
Fellwar Stone
46%inclusion74 decks162 decks
13%synergy
Mox Amber
31%inclusion50 decks162 decks
25%synergy
Mox Diamond
31%inclusion50 decks162 decks
24%synergy
Azorius Signet
28%inclusion45 decks162 decks
-2%synergy
Dimir Signet
27%inclusion43 decks162 decks
-4%synergy
Orzhov Signet
25%inclusion40 decks162 decks
-7%synergy
Mind Stone
23%inclusion38 decks162 decks
12%synergy
Thought Vessel
17%inclusion27 decks162 decks
-8%synergy
Grim Monolith
14%inclusion23 decks162 decks
11%synergy
Basalt Monolith
14%inclusion22 decks162 decks
11%synergy
Chromatic Star
10%inclusion17 decks162 decks
10%synergy
Lion's Eye Diamond
10%inclusion16 decks162 decks
8%synergy
Commander's Sphere
9.3%inclusion15 decks162 decks
-8%synergy
Gilded Lotus
8.6%inclusion14 decks162 decks
5%synergy
Chromatic Sphere
6.8%inclusion11 decks162 decks
7%synergy
Liquimetal Torque
6.8%inclusion11 decks162 decks
5%synergy
Lands
Command Tower
91%inclusion148 decks162 decks
-1%synergy
Swamp
81%inclusion131 decks162 decks
-11%synergy
Island
81%inclusion131 decks162 decks
-12%synergy
Plains
79%inclusion128 decks162 decks
-13%synergy
Watery Grave
76%inclusion123 decks162 decks
25%synergy
Hallowed Fountain
74%inclusion120 decks162 decks
23%synergy
Godless Shrine
73%inclusion118 decks162 decks
21%synergy
Marsh Flats
63%inclusion102 decks162 decks
27%synergy
Flooded Strand
61%inclusion99 decks162 decks
23%synergy
Polluted Delta
60%inclusion98 decks162 decks
22%synergy
Spire of Industry
46%inclusion74 decks162 decks
38%synergy
Morphic Pool
44%inclusion72 decks162 decks
11%synergy
Exotic Orchard
43%inclusion70 decks162 decks
-16%synergy
Raffine's Tower
42%inclusion68 decks162 decks
1%synergy
Tundra
40%inclusion65 decks162 decks
24%synergy
Sea of Clouds
40%inclusion65 decks162 decks
5%synergy
City of Brass
40%inclusion65 decks162 decks
25%synergy
Underground Sea
40%inclusion64 decks162 decks
24%synergy
Scrubland
37%inclusion60 decks162 decks
21%synergy
Vault of Champions
34%inclusion55 decks162 decks
2%synergy
Mana Confluence
31%inclusion51 decks162 decks
18%synergy
Misty Rainforest
31%inclusion50 decks162 decks
20%synergy
Scalding Tarn
30%inclusion48 decks162 decks
19%synergy
Arid Mesa
29%inclusion47 decks162 decks
20%synergy
Caves of Koilos
28%inclusion46 decks162 decks
-7%synergy
Windswept Heath
26%inclusion42 decks162 decks
17%synergy
Adarkar Wastes
25%inclusion41 decks162 decks
-7%synergy
Bloodstained Mire
25%inclusion41 decks162 decks
15%synergy
Verdant Catacombs
23%inclusion38 decks162 decks
14%synergy
Arcane Sanctum
23%inclusion38 decks162 decks
-31%synergy
Gemstone Caverns
23%inclusion38 decks162 decks
16%synergy
Glacial Fortress
22%inclusion36 decks162 decks
-21%synergy
Underground River
20%inclusion33 decks162 decks
-14%synergy
Mistvault Bridge
20%inclusion32 decks162 decks
14%synergy
Undercity Sewers
19%inclusion31 decks162 decks
4%synergy
Drowned Catacomb
19%inclusion31 decks162 decks
-19%synergy
Prairie Stream
19%inclusion30 decks162 decks
-22%synergy
Isolated Chapel
18%inclusion29 decks162 decks
-24%synergy
Goldmire Bridge
17%inclusion28 decks162 decks
11%synergy
Meticulous Archive
17%inclusion27 decks162 decks
3%synergy
Sunken Hollow
17%inclusion27 decks162 decks
-23%synergy
Razortide Bridge
16%inclusion26 decks162 decks
10%synergy
Shipwreck Marsh
14%inclusion23 decks162 decks
-6%synergy
Reflecting Pool
14%inclusion23 decks162 decks
6%synergy
Deserted Beach
14%inclusion23 decks162 decks
-7%synergy
Sink into Stupor
14%inclusion22 decks162 decks
1%synergy
Shadowy Backstreet
12%inclusion20 decks162 decks
0%synergy
Path of Ancestry
10%inclusion17 decks162 decks
-17%synergy
Gloomlake Verge
10%inclusion15 decks152 decks
-1%synergy
Snow-Covered Island
9.3%inclusion15 decks162 decks
6%synergy