Grenzo, Dungeon Warden (Commander) - Toolbox

Grenzo, Dungeon Warden
Rank #536
24decks
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Ethan Coover
Apr 15, 2026
Ethan Coover
The Best X-Cost Spell Combos in Commander
With the Quandrix school of Strixhaven so focused on X spells, now seems like a good time to run through the top X spell combo cards.
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Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
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Doctor Doom, Unrivaled
17%inclusion1 decks6 decks
16%synergy
High Synergy Cards
Heartstone
79%inclusion19 decks24 decks
77%synergy
Meteor Golem
71%inclusion17 decks24 decks
68%synergy
Viscera Seer
75%inclusion18 decks24 decks
66%synergy
Barkform Harvester
63%inclusion15 decks24 decks
61%synergy
The Cauldron of Eternity
63%inclusion15 decks24 decks
61%synergy
Ashnod's Altar
71%inclusion17 decks24 decks
61%synergy
Tel-Jilad Stylus
58%inclusion14 decks24 decks
58%synergy
Tomb Trawler
58%inclusion14 decks24 decks
58%synergy
Woe Strider
58%inclusion14 decks24 decks
56%synergy
Siege-Gang Commander
58%inclusion14 decks24 decks
55%synergy
Top Cards
Kiki-Jiki, Mirror Breaker
58%inclusion14 decks24 decks
54%synergy
Goblin Engineer
58%inclusion14 decks24 decks
54%synergy
Skirk Prospector
58%inclusion14 decks24 decks
54%synergy
Deathbringer Thoctar
54%inclusion13 decks24 decks
53%synergy
Sling-Gang Lieutenant
54%inclusion13 decks24 decks
51%synergy
Hoverstone Pilgrim
54%inclusion13 decks24 decks
54%synergy
Murderous Redcap
54%inclusion13 decks24 decks
51%synergy
Gray Merchant of Asphodel
50%inclusion12 decks24 decks
40%synergy
Goblin Welder
50%inclusion12 decks24 decks
47%synergy
Pitiless Plunderer
50%inclusion12 decks24 decks
37%synergy
Game Changers
Vampiric Tutor
25%inclusion6 decks24 decks
11%synergy
Ancient Tomb
21%inclusion5 decks24 decks
12%synergy
Demonic Tutor
21%inclusion5 decks24 decks
3%synergy
Jeska's Will
17%inclusion4 decks24 decks
-7%synergy
Imperial Seal
13%inclusion3 decks24 decks
8%synergy
Mana Vault
13%inclusion3 decks24 decks
7%synergy
Orcish Bowmasters
13%inclusion3 decks24 decks
2%synergy
Mox Diamond
8.3%inclusion2 decks24 decks
5%synergy
Chrome Mox
8.3%inclusion2 decks24 decks
3%synergy
Creatures
Duplicant
50%inclusion12 decks24 decks
49%synergy
Zealous Conscripts
46%inclusion11 decks24 decks
44%synergy
Mayhem Devil
46%inclusion11 decks24 decks
22%synergy
Mad Auntie
46%inclusion11 decks24 decks
44%synergy
Palladium Myr
46%inclusion11 decks24 decks
45%synergy
Goblin Trashmaster
42%inclusion10 decks24 decks
40%synergy
Goblin Matron
42%inclusion10 decks24 decks
39%synergy
Krenko, Mob Boss
42%inclusion10 decks24 decks
37%synergy
Iron Myr
42%inclusion10 decks24 decks
39%synergy
Zulaport Cutthroat
42%inclusion10 decks24 decks
33%synergy
Treasonous Ogre
42%inclusion10 decks24 decks
39%synergy
Pawn of Ulamog
42%inclusion10 decks24 decks
39%synergy
Workhorse
42%inclusion10 decks24 decks
41%synergy
Priest of Gix
42%inclusion10 decks24 decks
39%synergy
Priest of Urabrask
42%inclusion10 decks24 decks
40%synergy
Leaden Myr
42%inclusion10 decks24 decks
40%synergy
Solemn Simulacrum
38%inclusion9 decks24 decks
18%synergy
Chainer, Nightmare Adept
38%inclusion9 decks24 decks
30%synergy
Emrakul's Hatcher
38%inclusion9 decks24 decks
37%synergy
Plaguecrafter
38%inclusion9 decks24 decks
33%synergy
Junktroller
38%inclusion9 decks24 decks
37%synergy
Boggart Trawler
38%inclusion9 decks24 decks
30%synergy
Ravenous Chupacabra
38%inclusion9 decks24 decks
35%synergy
Burnished Hart
38%inclusion9 decks24 decks
33%synergy
Mindclaw Shaman
33%inclusion8 decks24 decks
33%synergy
Junk Diver
33%inclusion8 decks24 decks
32%synergy
Metallic Mimic
33%inclusion8 decks24 decks
32%synergy
Epitaph Golem
33%inclusion8 decks24 decks
33%synergy
Anger
33%inclusion8 decks24 decks
20%synergy
Hexing Squelcher
31%inclusion4 decks13 decks
18%synergy
Puppeteer Clique
29%inclusion7 decks24 decks
28%synergy
Ornithopter of Paradise
29%inclusion7 decks24 decks
25%synergy
Blood Artist
29%inclusion7 decks24 decks
10%synergy
Soldevi Adnate
29%inclusion7 decks24 decks
29%synergy
Dimir House Guard
25%inclusion6 decks24 decks
24%synergy
Goblin Chieftain
25%inclusion6 decks24 decks
23%synergy
Warren Soultrader
25%inclusion6 decks24 decks
17%synergy
Threefold Thunderhulk
25%inclusion6 decks24 decks
24%synergy
Judith, the Scourge Diva
25%inclusion6 decks24 decks
22%synergy
Goblin Sharpshooter
25%inclusion6 decks24 decks
24%synergy
Accursed Marauder
25%inclusion6 decks24 decks
20%synergy
Conspicuous Snoop
25%inclusion6 decks24 decks
23%synergy
Twilight Diviner
23%inclusion3 decks13 decks
21%synergy
Murderous Rider
21%inclusion5 decks24 decks
19%synergy
Bronze Walrus
21%inclusion5 decks24 decks
20%synergy
Imperial Recruiter
21%inclusion5 decks24 decks
17%synergy
Faceless Butcher
21%inclusion5 decks24 decks
21%synergy
Goblin Recruiter
21%inclusion5 decks24 decks
19%synergy
Phyrexian Delver
21%inclusion5 decks24 decks
20%synergy
Flayer of the Hatebound
21%inclusion5 decks24 decks
19%synergy
Instants
Valakut Awakening
50%inclusion12 decks24 decks
42%synergy
Chaos Warp
33%inclusion8 decks24 decks
-14%synergy
Volcanic Spite
21%inclusion5 decks24 decks
20%synergy
Fire Prophecy
21%inclusion5 decks24 decks
20%synergy
Withering Torment
17%inclusion4 decks23 decks
-4%synergy
Dark Ritual
17%inclusion4 decks24 decks
-26%synergy
Bedevil
17%inclusion4 decks24 decks
-18%synergy
Tibalt's Trickery
17%inclusion4 decks24 decks
4%synergy
Burnt Offering
13%inclusion3 decks24 decks
7%synergy
Fell the Profane
8.3%inclusion2 decks24 decks
-4%synergy
Thrill of Possibility
8.3%inclusion2 decks24 decks
-10%synergy
Entomb
8.3%inclusion2 decks24 decks
1%synergy
Wild Magic Surge
8.3%inclusion2 decks24 decks
6%synergy
Terminate
8.3%inclusion2 decks24 decks
-31%synergy
Malakir Rebirth
8.3%inclusion2 decks24 decks
-7%synergy
Deflecting Swat
8.3%inclusion2 decks24 decks
-13%synergy
Overkill
5.0%inclusion1 decks20 decks
2%synergy
Sorceries
Reanimate
25%inclusion6 decks24 decks
2%synergy
Feed the Swarm
21%inclusion5 decks24 decks
-20%synergy
Blasphemous Act
21%inclusion5 decks24 decks
-30%synergy
Victimize
17%inclusion4 decks24 decks
2%synergy
Faithless Looting
17%inclusion4 decks24 decks
-11%synergy
Doomsday
17%inclusion4 decks24 decks
16%synergy
Into the Fire
17%inclusion4 decks24 decks
16%synergy
Dread Return
13%inclusion3 decks24 decks
8%synergy
Lively Dirge
8.3%inclusion2 decks24 decks
6%synergy
Praetor's Grasp
8.3%inclusion2 decks24 decks
6%synergy
Sinister Waltz
8.3%inclusion2 decks24 decks
7%synergy
Agadeem's Awakening
8.3%inclusion2 decks24 decks
5%synergy
Read the Bones
8.3%inclusion2 decks24 decks
-4%synergy
Reckless Handling
8.3%inclusion2 decks24 decks
7%synergy
Living Death
8.3%inclusion2 decks24 decks
4%synergy
Insatiable Avarice
8.3%inclusion2 decks24 decks
4%synergy
Toxic Deluge
8.3%inclusion2 decks24 decks
-9%synergy
Cruel Tutor
8.3%inclusion2 decks24 decks
8%synergy
Grim Tutor
8.3%inclusion2 decks24 decks
4%synergy
Utility Artifacts
Teferi's Puzzle Box
25%inclusion6 decks24 decks
24%synergy
Phyrexian Altar
25%inclusion6 decks24 decks
19%synergy
Cloak and Dagger
21%inclusion5 decks24 decks
20%synergy
Reito Lantern
21%inclusion5 decks24 decks
21%synergy
Desecrated Tomb
17%inclusion4 decks24 decks
16%synergy
Crystal Ball
17%inclusion4 decks24 decks
16%synergy
Lightning Greaves
17%inclusion4 decks24 decks
-19%synergy
Thornbite Staff
17%inclusion4 decks24 decks
16%synergy
Sensei's Divining Top
13%inclusion3 decks24 decks
7%synergy
Darksteel Pendant
13%inclusion3 decks24 decks
12%synergy
Skullclamp
13%inclusion3 decks24 decks
2%synergy
Nim Deathmantle
13%inclusion3 decks24 decks
12%synergy
Soldevi Digger
13%inclusion3 decks24 decks
12%synergy
Illusionist's Bracers
8.3%inclusion2 decks24 decks
8%synergy
Scroll Rack
8.3%inclusion2 decks24 decks
7%synergy
Altar of Dementia
8.3%inclusion2 decks24 decks
6%synergy
Swiftfoot Boots
8.3%inclusion2 decks24 decks
-23%synergy
Enchantments
Goblin Bombardment
29%inclusion7 decks24 decks
19%synergy
Impact Tremors
25%inclusion6 decks24 decks
14%synergy
Fires of Invention
17%inclusion4 decks24 decks
16%synergy
Boggart Mischief
15%inclusion2 decks13 decks
11%synergy
Mindmoil
13%inclusion3 decks24 decks
12%synergy
Braid of Fire
13%inclusion3 decks24 decks
11%synergy
Teval's Judgment
10%inclusion2 decks21 decks
9%synergy
Thran Vigil
8.3%inclusion2 decks24 decks
7%synergy
Shadows of the Past
8.3%inclusion2 decks24 decks
8%synergy
Meek Attack
7.7%inclusion1 decks13 decks
7%synergy
Utility Lands
Buried Ruin
58%inclusion14 decks24 decks
55%synergy
Zhalfirin Void
42%inclusion10 decks24 decks
41%synergy
Vault of Whispers
33%inclusion8 decks24 decks
27%synergy
Great Furnace
33%inclusion8 decks24 decks
27%synergy
Bojuka Bog
29%inclusion7 decks24 decks
-6%synergy
Urborg, Tomb of Yawgmoth
25%inclusion6 decks24 decks
6%synergy
Phyrexian Tower
17%inclusion4 decks24 decks
6%synergy
Inventors' Fair
13%inclusion3 decks24 decks
11%synergy
Crypt of Agadeem
13%inclusion3 decks24 decks
12%synergy
Rogue's Passage
13%inclusion3 decks24 decks
-7%synergy
Den of the Bugbear
13%inclusion3 decks24 decks
11%synergy
Nykthos, Shrine to Nyx
13%inclusion3 decks24 decks
11%synergy
High Market
13%inclusion3 decks24 decks
8%synergy
Takenuma, Abandoned Mire
13%inclusion3 decks24 decks
4%synergy
Drownyard Temple
13%inclusion3 decks24 decks
11%synergy
Homeward Path
13%inclusion3 decks24 decks
11%synergy
Temple of the False God
13%inclusion3 decks24 decks
3%synergy
Westvale Abbey
8.3%inclusion2 decks24 decks
7%synergy
Boseiju, Who Shelters All
8.3%inclusion2 decks24 decks
8%synergy
Arid Archway
8.3%inclusion2 decks24 decks
8%synergy
Spinerock Knoll
8.3%inclusion2 decks24 decks
-1%synergy
Cabal Coffers
8.3%inclusion2 decks24 decks
-1%synergy
Spymaster's Vault
8.3%inclusion2 decks24 decks
5%synergy
Witch's Cottage
8.3%inclusion2 decks24 decks
6%synergy
Dakmor Salvage
8.3%inclusion2 decks24 decks
8%synergy
Fire Nation Palace
7.7%inclusion1 decks13 decks
3%synergy
Mana Artifacts
Sol Ring
75%inclusion18 decks24 decks
-11%synergy
Arcane Signet
50%inclusion12 decks24 decks
-32%synergy
Rakdos Signet
38%inclusion9 decks24 decks
-20%synergy
Thran Turbine
25%inclusion6 decks24 decks
24%synergy
Talisman of Indulgence
17%inclusion4 decks24 decks
-39%synergy
Mind Stone
13%inclusion3 decks24 decks
-15%synergy
Fellwar Stone
8.3%inclusion2 decks24 decks
-25%synergy
Mox Amber
8.3%inclusion2 decks24 decks
4%synergy
Springleaf Drum
8.3%inclusion2 decks24 decks
6%synergy
The Eternity Elevator
5.3%inclusion1 decks19 decks
5%synergy
Lands
Swamp
100%inclusion24 decks24 decks
2%synergy
Mountain
100%inclusion24 decks24 decks
3%synergy
Command Tower
92%inclusion22 decks24 decks
6%synergy
Blood Crypt
63%inclusion15 decks24 decks
15%synergy
Dragonskull Summit
63%inclusion15 decks24 decks
-1%synergy
Sulfurous Springs
63%inclusion15 decks24 decks
15%synergy
Smoldering Marsh
58%inclusion14 decks24 decks
-5%synergy
Temple of Malice
54%inclusion13 decks24 decks
21%synergy
Valakut Awakening
50%inclusion12 decks24 decks
42%synergy
Shadowblood Ridge
42%inclusion10 decks24 decks
7%synergy
Tainted Peak
42%inclusion10 decks24 decks
-2%synergy
Graven Cairns
38%inclusion9 decks24 decks
6%synergy
Foreboding Ruins
38%inclusion9 decks24 decks
-8%synergy
Boggart Trawler
38%inclusion9 decks24 decks
30%synergy
Exotic Orchard
33%inclusion8 decks24 decks
2%synergy
Rakdos Carnarium
29%inclusion7 decks24 decks
-2%synergy
Luxury Suite
29%inclusion7 decks24 decks
-9%synergy
Path of Ancestry
29%inclusion7 decks24 decks
13%synergy
Blightstep Pathway
29%inclusion7 decks24 decks
7%synergy
Bloodstained Mire
29%inclusion7 decks24 decks
-4%synergy
Blazemire Verge
26%inclusion6 decks23 decks
-5%synergy
Raucous Theater
25%inclusion6 decks24 decks
3%synergy
Cavern of Souls
25%inclusion6 decks24 decks
20%synergy
Myriad Landscape
21%inclusion5 decks24 decks
3%synergy
Canyon Slough
21%inclusion5 decks24 decks
1%synergy
The Grey Havens
21%inclusion5 decks24 decks
20%synergy
Haunted Ridge
21%inclusion5 decks24 decks
-15%synergy
Badlands
17%inclusion4 decks24 decks
3%synergy
Demolition Field
17%inclusion4 decks24 decks
14%synergy
Ash Barrens
17%inclusion4 decks24 decks
9%synergy
Arid Mesa
17%inclusion4 decks24 decks
9%synergy
Maestros Theater
17%inclusion4 decks24 decks
14%synergy
Evolving Wilds
17%inclusion4 decks24 decks
-4%synergy
Crystal Grotto
17%inclusion4 decks24 decks
16%synergy
Rumble Arena
15%inclusion2 decks13 decks
15%synergy
Riveteers Overlook
13%inclusion3 decks24 decks
11%synergy
Auntie's Hovel
13%inclusion3 decks24 decks
11%synergy
Opal Palace
13%inclusion3 decks24 decks
11%synergy
Blackcleave Cliffs
13%inclusion3 decks24 decks
-8%synergy
Wooded Foothills
13%inclusion3 decks24 decks
5%synergy
Scalding Tarn
13%inclusion3 decks24 decks
5%synergy
Mana Confluence
13%inclusion3 decks24 decks
7%synergy
Polluted Delta
13%inclusion3 decks24 decks
5%synergy
Pinnacle Monk
13%inclusion3 decks24 decks
5%synergy
Fell the Profane
8.3%inclusion2 decks24 decks
-4%synergy
Terramorphic Expanse
8.3%inclusion2 decks24 decks
-7%synergy
Plaza of Heroes
8.3%inclusion2 decks24 decks
7%synergy
Agadeem's Awakening
8.3%inclusion2 decks24 decks
5%synergy
Verdant Catacombs
8.3%inclusion2 decks24 decks
2%synergy
Malakir Rebirth
8.3%inclusion2 decks24 decks
-7%synergy
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