Seymour Guado (Commander) - Optimized Midrange

Original Name:

Kinnan, Bonder ProdigyKinnan, Bonder Prodigy

Background image for What if Thassa's Oracle Were Banned?
Harvey McGuinness
Sep 23, 2025
What if Thassa's Oracle Were Banned?
What would happen to cEDH if Thassa's Oracle were banned tomorrow? Would the best decks fall apart? Would there be a new meta? Let's discuss.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
Thrasios, Triton Hero
86%inclusion12 decks14 decks
78%synergy
Mystic Remora
86%inclusion12 decks14 decks
70%synergy
Hullbreaker Horror
86%inclusion12 decks14 decks
68%synergy
Nezahal, Primal Tide
79%inclusion11 decks14 decks
67%synergy
Swan Song
86%inclusion12 decks14 decks
67%synergy
Elvish Mystic
86%inclusion12 decks14 decks
61%synergy
Tidespout Tyrant
64%inclusion9 decks14 decks
60%synergy
Birds of Paradise
86%inclusion12 decks14 decks
58%synergy
Llanowar Elves
86%inclusion12 decks14 decks
58%synergy
Fabricate
64%inclusion9 decks14 decks
58%synergy
Top Cards
Fyndhorn Elves
71%inclusion10 decks14 decks
55%synergy
An Offer You Can't Refuse
64%inclusion9 decks14 decks
42%synergy
Finale of Devastation
64%inclusion9 decks14 decks
53%synergy
Counterspell
64%inclusion9 decks14 decks
14%synergy
Wandering Archaic
57%inclusion8 decks14 decks
52%synergy
Elvish Spirit Guide
57%inclusion8 decks14 decks
52%synergy
Nyxbloom Ancient
57%inclusion8 decks14 decks
50%synergy
Endurance
57%inclusion8 decks14 decks
53%synergy
Enduring Vitality
54%inclusion7 decks13 decks
47%synergy
Invasion of Ikoria
50%inclusion7 decks14 decks
46%synergy
Game Changers
Seedborn Muse
93%inclusion13 decks14 decks
77%synergy
Consecrated Sphinx
71%inclusion10 decks14 decks
63%synergy
Worldly Tutor
71%inclusion10 decks14 decks
56%synergy
Rhystic Study
71%inclusion10 decks14 decks
49%synergy
Cyclonic Rift
71%inclusion10 decks14 decks
45%synergy
Mana Vault
57%inclusion8 decks14 decks
51%synergy
The One Ring
50%inclusion7 decks14 decks
42%synergy
Fierce Guardianship
50%inclusion7 decks14 decks
33%synergy
Force of Will
43%inclusion6 decks14 decks
33%synergy
Mox Diamond
36%inclusion5 decks14 decks
31%synergy
Creatures
Valley Floodcaller
46%inclusion6 decks13 decks
43%synergy
Bloom Tender
43%inclusion6 decks14 decks
38%synergy
Delighted Halfling
43%inclusion6 decks14 decks
32%synergy
High Fae Trickster
38%inclusion5 decks13 decks
35%synergy
Trophy Mage
36%inclusion5 decks14 decks
31%synergy
Phyrexian Metamorph
36%inclusion5 decks14 decks
28%synergy
Hydroelectric Specimen
36%inclusion5 decks14 decks
30%synergy
Void Winnower
36%inclusion5 decks14 decks
32%synergy
Fanatic of Rhonas
36%inclusion5 decks14 decks
30%synergy
Thorn Mammoth
36%inclusion5 decks14 decks
34%synergy
Spellskite
36%inclusion5 decks14 decks
30%synergy
Jin-Gitaxias, Progress Tyrant
36%inclusion5 decks14 decks
33%synergy
Glen Elendra Archmage
29%inclusion4 decks14 decks
25%synergy
Koma, Cosmos Serpent
29%inclusion4 decks14 decks
13%synergy
Drift of Phantasms
29%inclusion4 decks14 decks
26%synergy
Perplexing Chimera
29%inclusion4 decks14 decks
27%synergy
Colossal Skyturtle
29%inclusion4 decks14 decks
23%synergy
Faerie Mastermind
29%inclusion4 decks14 decks
24%synergy
Clever Impersonator
29%inclusion4 decks14 decks
24%synergy
Paradise Druid
29%inclusion4 decks14 decks
24%synergy
Koma, World-Eater
23%inclusion3 decks13 decks
10%synergy
Thassa's Oracle
21%inclusion3 decks14 decks
16%synergy
Fauna Shaman
21%inclusion3 decks14 decks
20%synergy
Aesi, Tyrant of Gyre Strait
21%inclusion3 decks14 decks
4%synergy
Manglehorn
21%inclusion3 decks14 decks
18%synergy
Vorinclex, Voice of Hunger
21%inclusion3 decks14 decks
18%synergy
Old Gnawbone
21%inclusion3 decks14 decks
20%synergy
Jin-Gitaxias, Core Augur
21%inclusion3 decks14 decks
18%synergy
Gogo, Master of Mimicry
18%inclusion2 decks11 decks
17%synergy
Jumbo Cactuar
17%inclusion2 decks12 decks
16%synergy
Maraleaf Pixie
14%inclusion2 decks14 decks
8%synergy
Volatile Stormdrake
14%inclusion2 decks14 decks
12%synergy
Sylvan Caryatid
14%inclusion2 decks14 decks
12%synergy
Terastodon
14%inclusion2 decks14 decks
6%synergy
Flesh Duplicate
14%inclusion2 decks14 decks
12%synergy
Worldspine Wurm
14%inclusion2 decks14 decks
11%synergy
Eternal Witness
14%inclusion2 decks14 decks
-7%synergy
Incubation Druid
14%inclusion2 decks14 decks
6%synergy
Ornithopter of Paradise
14%inclusion2 decks14 decks
10%synergy
Walking Ballista
14%inclusion2 decks14 decks
10%synergy
Sphinx of the Second Sun
14%inclusion2 decks14 decks
13%synergy
Ilysian Caryatid
14%inclusion2 decks14 decks
10%synergy
Murkfiend Liege
14%inclusion2 decks14 decks
-1%synergy
Altered Ego
14%inclusion2 decks14 decks
12%synergy
Kogla, the Titan Ape
14%inclusion2 decks14 decks
11%synergy
Craterhoof Behemoth
14%inclusion2 decks14 decks
5%synergy
Ulvenwald Oddity
14%inclusion2 decks14 decks
13%synergy
Zopandrel, Hunger Dominus
14%inclusion2 decks14 decks
12%synergy
Ulamog, the Infinite Gyre
14%inclusion2 decks14 decks
12%synergy
Arixmethes, Slumbering Isle
14%inclusion2 decks14 decks
1%synergy
Instants
Sink into Stupor
57%inclusion8 decks14 decks
46%synergy
Chord of Calling
50%inclusion7 decks14 decks
42%synergy
Flusterstorm
50%inclusion7 decks14 decks
43%synergy
Pact of Negation
50%inclusion7 decks14 decks
43%synergy
Crop Rotation
43%inclusion6 decks14 decks
29%synergy
Mindbreak Trap
43%inclusion6 decks14 decks
38%synergy
Mana Drain
43%inclusion6 decks14 decks
27%synergy
Pongify
36%inclusion5 decks14 decks
11%synergy
Force of Vigor
36%inclusion5 decks14 decks
31%synergy
Dispel
36%inclusion5 decks14 decks
31%synergy
Veil of Summer
29%inclusion4 decks14 decks
23%synergy
Rapid Hybridization
29%inclusion4 decks14 decks
2%synergy
Whir of Invention
29%inclusion4 decks14 decks
26%synergy
Mental Misstep
29%inclusion4 decks14 decks
23%synergy
Heroic Intervention
29%inclusion4 decks14 decks
-2%synergy
Negate
29%inclusion4 decks14 decks
2%synergy
Growth Spiral
29%inclusion4 decks14 decks
-16%synergy
Noxious Revival
29%inclusion4 decks14 decks
22%synergy
Arcane Denial
29%inclusion4 decks14 decks
6%synergy
Force of Negation
29%inclusion4 decks14 decks
20%synergy
Mystical Tutor
29%inclusion4 decks14 decks
19%synergy
Into the Flood Maw
23%inclusion3 decks13 decks
19%synergy
Blue Sun's Zenith
21%inclusion3 decks14 decks
18%synergy
Beast Within
21%inclusion3 decks14 decks
-29%synergy
Summoner's Pact
21%inclusion3 decks14 decks
20%synergy
Resculpt
21%inclusion3 decks14 decks
15%synergy
Delay
21%inclusion3 decks14 decks
19%synergy
Misdirection
21%inclusion3 decks14 decks
20%synergy
March of Swirling Mist
21%inclusion3 decks14 decks
17%synergy
Miscast
21%inclusion3 decks14 decks
19%synergy
Chain of Vapor
14%inclusion2 decks14 decks
11%synergy
Return of the Wildspeaker
14%inclusion2 decks14 decks
4%synergy
Brainstorm
14%inclusion2 decks14 decks
0%synergy
Archdruid's Charm
14%inclusion2 decks14 decks
8%synergy
Reality Shift
14%inclusion2 decks14 decks
0%synergy
Commandeer
14%inclusion2 decks14 decks
13%synergy
Pull from Tomorrow
14%inclusion2 decks14 decks
11%synergy
Yuna's Whistle
9.1%inclusion1 decks11 decks
9%synergy
Disdainful Stroke
7.1%inclusion1 decks14 decks
5%synergy
String of Disappearances
7.1%inclusion1 decks14 decks
7%synergy
Retraction Helix
7.1%inclusion1 decks14 decks
7%synergy
Syncopate
7.1%inclusion1 decks14 decks
7%synergy
Stubborn Denial
7.1%inclusion1 decks14 decks
5%synergy
Krosan Grip
7.1%inclusion1 decks14 decks
-1%synergy
Fact or Fiction
7.1%inclusion1 decks14 decks
4%synergy
Blink of an Eye
7.1%inclusion1 decks14 decks
6%synergy
Not of This World
7.1%inclusion1 decks14 decks
7%synergy
Smuggler's Surprise
7.1%inclusion1 decks14 decks
6%synergy
Nexus of Fate
7.1%inclusion1 decks14 decks
5%synergy
Nature's Claim
7.1%inclusion1 decks14 decks
-3%synergy
Sorceries
Nature's Rhythm
45%inclusion5 decks11 decks
40%synergy
Green Sun's Zenith
36%inclusion5 decks14 decks
27%synergy
Nature's Lore
29%inclusion4 decks14 decks
-2%synergy
Rampant Growth
29%inclusion4 decks14 decks
-12%synergy
Last March of the Ents
21%inclusion3 decks14 decks
18%synergy
Cultivate
21%inclusion3 decks14 decks
-26%synergy
Bridgeworks Battle
21%inclusion3 decks14 decks
17%synergy
Ponder
14%inclusion2 decks14 decks
7%synergy
Windfall
14%inclusion2 decks14 decks
10%synergy
Kodama's Reach
14%inclusion2 decks14 decks
-23%synergy
Neoform
14%inclusion2 decks14 decks
10%synergy
Farseek
14%inclusion2 decks14 decks
-10%synergy
Traverse the Ulvenwald
14%inclusion2 decks14 decks
14%synergy
Transmute Artifact
14%inclusion2 decks14 decks
12%synergy
Eldritch Evolution
7.1%inclusion1 decks14 decks
4%synergy
Three Visits
7.1%inclusion1 decks14 decks
-16%synergy
Gitaxian Probe
7.1%inclusion1 decks14 decks
5%synergy
Enter the Infinite
7.1%inclusion1 decks14 decks
6%synergy
Tooth and Nail
7.1%inclusion1 decks14 decks
6%synergy
Triumph of the Hordes
7.1%inclusion1 decks14 decks
4%synergy
Turntimber Symbiosis
7.1%inclusion1 decks14 decks
5%synergy
Soul's Majesty
7.1%inclusion1 decks14 decks
6%synergy
Curse of the Swine
7.1%inclusion1 decks14 decks
-4%synergy
Temporal Mastery
7.1%inclusion1 decks14 decks
6%synergy
Mass Manipulation
7.1%inclusion1 decks14 decks
6%synergy
Finale of Revelation
7.1%inclusion1 decks14 decks
2%synergy
Rishkar's Expertise
7.1%inclusion1 decks14 decks
-1%synergy
Explosive Vegetation
7.1%inclusion1 decks14 decks
1%synergy
Expropriate
7.1%inclusion1 decks14 decks
6%synergy
Shamanic Revelation
7.1%inclusion1 decks14 decks
2%synergy
Time Warp
7.1%inclusion1 decks14 decks
5%synergy
Overwhelming Stampede
7.1%inclusion1 decks14 decks
-5%synergy
Regrowth
7.1%inclusion1 decks14 decks
3%synergy
Utility Artifacts
Moonsilver Key
50%inclusion7 decks14 decks
46%synergy
Mirage Mirror
50%inclusion7 decks14 decks
43%synergy
Lightning Greaves
29%inclusion4 decks14 decks
7%synergy
The Great Henge
21%inclusion3 decks14 decks
13%synergy
Swiftfoot Boots
21%inclusion3 decks14 decks
-5%synergy
Scroll Rack
14%inclusion2 decks14 decks
12%synergy
Trinisphere
14%inclusion2 decks14 decks
14%synergy
Sensei's Divining Top
7.1%inclusion1 decks14 decks
4%synergy
Unwinding Clock
7.1%inclusion1 decks14 decks
6%synergy
Umbral Mantle
7.1%inclusion1 decks14 decks
5%synergy
Torpor Orb
7.1%inclusion1 decks14 decks
7%synergy
Agatha's Soul Cauldron
7.1%inclusion1 decks14 decks
5%synergy
Staff of Domination
7.1%inclusion1 decks14 decks
5%synergy
Enchantments
Freed from the Real
43%inclusion6 decks14 decks
38%synergy
Sylvan Library
36%inclusion5 decks14 decks
26%synergy
Unstoppable Plan
23%inclusion3 decks13 decks
21%synergy
Mirrormade
21%inclusion3 decks14 decks
20%synergy
Guardian Project
14%inclusion2 decks14 decks
8%synergy
Copy Enchantment
14%inclusion2 decks14 decks
13%synergy
Amphibian Downpour
14%inclusion2 decks14 decks
9%synergy
Concordant Crossroads
14%inclusion2 decks14 decks
11%synergy
Cryptolith Rite
7.1%inclusion1 decks14 decks
4%synergy
Intruder Alarm
7.1%inclusion1 decks14 decks
3%synergy
Garruk's Uprising
7.1%inclusion1 decks14 decks
-9%synergy
Imprisoned in the Moon
7.1%inclusion1 decks14 decks
3%synergy
Elven Chorus
7.1%inclusion1 decks14 decks
3%synergy
On the Trail
7.1%inclusion1 decks14 decks
6%synergy
Wilderness Reclamation
7.1%inclusion1 decks14 decks
-2%synergy
Song of the Dryads
7.1%inclusion1 decks14 decks
6%synergy
Training Grounds
7.1%inclusion1 decks14 decks
4%synergy
Asceticism
7.1%inclusion1 decks14 decks
4%synergy
Mana Reflection
7.1%inclusion1 decks14 decks
2%synergy
Kenrith's Transformation
7.1%inclusion1 decks14 decks
2%synergy
Pemmin's Aura
7.1%inclusion1 decks14 decks
4%synergy
Retreat to Coralhelm
7.1%inclusion1 decks14 decks
-3%synergy
Defense of the Heart
7.1%inclusion1 decks14 decks
5%synergy
Planeswalkers
Tezzeret the Seeker
43%inclusion6 decks14 decks
39%synergy
Narset, Parter of Veils
7.1%inclusion1 decks14 decks
6%synergy
Utility Lands
Boseiju, Who Endures
64%inclusion9 decks14 decks
42%synergy
Treasure Vault
50%inclusion7 decks14 decks
46%synergy
Otawara, Soaring City
50%inclusion7 decks14 decks
31%synergy
Mistrise Village
36%inclusion4 decks11 decks
26%synergy
Ancient Tomb
36%inclusion5 decks14 decks
26%synergy
Emergence Zone
36%inclusion5 decks14 decks
32%synergy
Cephalid Coliseum
36%inclusion5 decks14 decks
31%synergy
Minamo, School at Water's Edge
29%inclusion4 decks14 decks
22%synergy
Gaea's Cradle
21%inclusion3 decks14 decks
14%synergy
Yavimaya, Cradle of Growth
21%inclusion3 decks14 decks
-1%synergy
Reliquary Tower
21%inclusion3 decks14 decks
-29%synergy
Homeward Path
21%inclusion3 decks14 decks
19%synergy
Urza's Saga
14%inclusion2 decks14 decks
9%synergy
Shifting Woodland
14%inclusion2 decks14 decks
7%synergy
Castle Vantress
14%inclusion2 decks14 decks
7%synergy
Castle Garenbrig
14%inclusion2 decks14 decks
10%synergy
Amonkhet Raceway
7.7%inclusion1 decks13 decks
7%synergy
Mystic Sanctuary
7.1%inclusion1 decks14 decks
-6%synergy
Alchemist's Refuge
7.1%inclusion1 decks14 decks
-11%synergy
Buried Ruin
7.1%inclusion1 decks14 decks
6%synergy
War Room
7.1%inclusion1 decks14 decks
6%synergy
Mosswort Bridge
7.1%inclusion1 decks14 decks
-10%synergy
Command Beacon
7.1%inclusion1 decks14 decks
3%synergy
Thran Portal
7.1%inclusion1 decks14 decks
7%synergy
Tranquil Thicket
7.1%inclusion1 decks14 decks
3%synergy
Temple of the False God
7.1%inclusion1 decks14 decks
-8%synergy
Rogue's Passage
7.1%inclusion1 decks14 decks
-15%synergy
Mana Artifacts
Arcane Signet
100%inclusion14 decks14 decks
37%synergy
Simic Signet
93%inclusion13 decks14 decks
60%synergy
Sol Ring
93%inclusion13 decks14 decks
12%synergy
Basalt Monolith
93%inclusion13 decks14 decks
86%synergy
Talisman of Curiosity
86%inclusion12 decks14 decks
64%synergy
Fellwar Stone
71%inclusion10 decks14 decks
62%synergy
Springleaf Drum
64%inclusion9 decks14 decks
60%synergy
Lotus Petal
57%inclusion8 decks14 decks
50%synergy
Mox Amber
57%inclusion8 decks14 decks
51%synergy
Chrome Mox
29%inclusion4 decks14 decks
22%synergy
Grim Monolith
21%inclusion3 decks14 decks
19%synergy
Thought Vessel
21%inclusion3 decks14 decks
1%synergy
Mox Opal
21%inclusion3 decks14 decks
17%synergy
Moss Diamond
14%inclusion2 decks14 decks
13%synergy
Commander's Sphere
14%inclusion2 decks14 decks
6%synergy
Sky Diamond
14%inclusion2 decks14 decks
13%synergy
Relic of Legends
14%inclusion2 decks14 decks
14%synergy
Everflowing Chalice
7.1%inclusion1 decks14 decks
3%synergy
Astral Cornucopia
7.1%inclusion1 decks14 decks
5%synergy
Coldsteel Heart
7.1%inclusion1 decks14 decks
7%synergy
Darksteel Ingot
7.1%inclusion1 decks14 decks
7%synergy
Liquimetal Torque
7.1%inclusion1 decks14 decks
6%synergy
Mind Stone
7.1%inclusion1 decks14 decks
3%synergy
Spinning Wheel
7.1%inclusion1 decks14 decks
7%synergy
Skyclave Relic
7.1%inclusion1 decks14 decks
6%synergy
Lands
Command Tower
100%inclusion14 decks14 decks
15%synergy
Island
86%inclusion12 decks14 decks
-10%synergy
Forest
86%inclusion12 decks14 decks
-9%synergy
Misty Rainforest
71%inclusion10 decks14 decks
40%synergy
Breeding Pool
71%inclusion10 decks14 decks
27%synergy
Yavimaya Coast
64%inclusion9 decks14 decks
12%synergy
Rejuvenating Springs
64%inclusion9 decks14 decks
20%synergy
Waterlogged Grove
57%inclusion8 decks14 decks
37%synergy
Sink into Stupor
57%inclusion8 decks14 decks
46%synergy
Flooded Strand
57%inclusion8 decks14 decks
46%synergy
Exotic Orchard
50%inclusion7 decks14 decks
26%synergy
Flooded Grove
50%inclusion7 decks14 decks
10%synergy
Barkchannel Pathway
43%inclusion6 decks14 decks
22%synergy
Verdant Catacombs
43%inclusion6 decks14 decks
33%synergy
Tropical Island
43%inclusion6 decks14 decks
29%synergy
Scalding Tarn
43%inclusion6 decks14 decks
33%synergy
Hydroelectric Specimen
36%inclusion5 decks14 decks
30%synergy
Polluted Delta
36%inclusion5 decks14 decks
25%synergy
Hinterland Harbor
36%inclusion5 decks14 decks
-23%synergy
Prismatic Vista
29%inclusion4 decks14 decks
21%synergy
Simic Growth Chamber
29%inclusion4 decks14 decks
-20%synergy
Windswept Heath
29%inclusion4 decks14 decks
18%synergy
Snow-Covered Island
29%inclusion4 decks14 decks
22%synergy
Snow-Covered Forest
29%inclusion4 decks14 decks
22%synergy
Wooded Foothills
29%inclusion4 decks14 decks
19%synergy
Botanical Sanctum
29%inclusion4 decks14 decks
16%synergy
Gemstone Caverns
29%inclusion4 decks14 decks
23%synergy
Dreamroot Cascade
29%inclusion4 decks14 decks
-13%synergy
Overflowing Basin
21%inclusion3 decks14 decks
2%synergy
Temple of Mystery
21%inclusion3 decks14 decks
-17%synergy
Bridgeworks Battle
21%inclusion3 decks14 decks
17%synergy
Forbidden Orchard
21%inclusion3 decks14 decks
20%synergy
Mana Confluence
21%inclusion3 decks14 decks
16%synergy
City of Brass
21%inclusion3 decks14 decks
16%synergy
Willowrush Verge
15%inclusion2 decks13 decks
0%synergy
Terramorphic Expanse
14%inclusion2 decks14 decks
-6%synergy
Talon Gates of Madara
14%inclusion2 decks14 decks
6%synergy
Hedge Maze
14%inclusion2 decks14 decks
-5%synergy
Gemstone Mine
7.1%inclusion1 decks14 decks
7%synergy
Quandrix Campus
7.1%inclusion1 decks14 decks
0%synergy
Myriad Landscape
7.1%inclusion1 decks14 decks
-15%synergy
Vineglimmer Snarl
7.1%inclusion1 decks14 decks
-31%synergy
Turntimber Symbiosis
7.1%inclusion1 decks14 decks
5%synergy
Tangled Islet
7.1%inclusion1 decks14 decks
-9%synergy
Reflecting Pool
7.1%inclusion1 decks14 decks
4%synergy
Rimewood Falls
7.1%inclusion1 decks14 decks
-3%synergy
Plaza of Heroes
7.1%inclusion1 decks14 decks
6%synergy
Evolving Wilds
7.1%inclusion1 decks14 decks
-18%synergy
Glasspool Mimic
7.1%inclusion1 decks14 decks
3%synergy
Thornwood Falls
7.1%inclusion1 decks14 decks
-11%synergy