Grenzo, Dungeon Warden (Commander) - Upgraded

Grenzo, Dungeon Warden
Rank #541
379decks
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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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Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Utility Lands
Mana Artifacts
Lands
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Relic Retriever
13%inclusion15 decks112 decks
13%synergy
Blazing Firesinger
7.2%inclusion7 decks97 decks
6%synergy
Garrison Excavator
7.2%inclusion8 decks111 decks
7%synergy
Sundering Archaic
4.9%inclusion5 decks103 decks
5%synergy
Grave Researcher
3.5%inclusion4 decks114 decks
1%synergy
High Synergy Cards
Heartstone
77%inclusion291 decks379 decks
75%synergy
Siege-Gang Commander
67%inclusion253 decks379 decks
63%synergy
Barkform Harvester
62%inclusion234 decks378 decks
61%synergy
The Cauldron of Eternity
61%inclusion233 decks379 decks
60%synergy
Tel-Jilad Stylus
61%inclusion231 decks379 decks
60%synergy
Ashnod's Altar
70%inclusion264 decks379 decks
59%synergy
Sling-Gang Lieutenant
61%inclusion230 decks379 decks
58%synergy
Tomb Trawler
57%inclusion216 decks379 decks
56%synergy
Skirk Prospector
59%inclusion223 decks379 decks
54%synergy
Workhorse
54%inclusion205 decks379 decks
53%synergy
Top Cards
Viscera Seer
61%inclusion232 decks379 decks
52%synergy
Murderous Redcap
57%inclusion215 decks379 decks
53%synergy
Kiki-Jiki, Mirror Breaker
56%inclusion214 decks379 decks
52%synergy
Pitiless Plunderer
54%inclusion203 decks379 decks
41%synergy
Krenko, Mob Boss
50%inclusion191 decks379 decks
46%synergy
Priest of Gix
50%inclusion189 decks379 decks
48%synergy
Goblin Matron
50%inclusion188 decks379 decks
46%synergy
Priest of Urabrask
49%inclusion187 decks379 decks
47%synergy
Solemn Simulacrum
49%inclusion186 decks379 decks
29%synergy
Hoverstone Pilgrim
49%inclusion184 decks379 decks
48%synergy
Game Changers
Ancient Tomb
13%inclusion48 decks379 decks
3%synergy
Gamble
10%inclusion39 decks379 decks
0%synergy
Jeska's Will
9.2%inclusion35 decks379 decks
-14%synergy
Demonic Tutor
9.0%inclusion34 decks379 decks
-9%synergy
Vampiric Tutor
6.9%inclusion26 decks379 decks
-7%synergy
Orcish Bowmasters
6.6%inclusion25 decks379 decks
-4%synergy
Creatures
Goblin Engineer
46%inclusion175 decks379 decks
42%synergy
Palladium Myr
46%inclusion174 decks379 decks
45%synergy
Mad Auntie
46%inclusion174 decks379 decks
44%synergy
Zulaport Cutthroat
45%inclusion169 decks379 decks
36%synergy
Gray Merchant of Asphodel
42%inclusion159 decks379 decks
31%synergy
Boggart Trawler
40%inclusion153 decks379 decks
33%synergy
Meteor Golem
39%inclusion146 decks379 decks
36%synergy
Iron Myr
38%inclusion144 decks379 decks
36%synergy
Goblin Trashmaster
37%inclusion142 decks379 decks
36%synergy
Leaden Myr
37%inclusion141 decks379 decks
35%synergy
Goblin Welder
37%inclusion140 decks379 decks
34%synergy
Metallic Mimic
37%inclusion139 decks379 decks
35%synergy
Junktroller
36%inclusion138 decks379 decks
36%synergy
Woe Strider
36%inclusion137 decks379 decks
34%synergy
Pawn of Ulamog
36%inclusion137 decks379 decks
34%synergy
Warren Soultrader
36%inclusion136 decks379 decks
28%synergy
Epitaph Golem
36%inclusion135 decks379 decks
35%synergy
Goblin Chieftain
35%inclusion133 decks379 decks
33%synergy
Ravenous Chupacabra
35%inclusion133 decks379 decks
33%synergy
Goblin Warchief
35%inclusion132 decks379 decks
32%synergy
Blood Artist
34%inclusion129 decks379 decks
15%synergy
Beetleback Chief
33%inclusion124 decks379 decks
31%synergy
Goblin Chirurgeon
32%inclusion123 decks379 decks
31%synergy
Ornithopter of Paradise
32%inclusion121 decks379 decks
28%synergy
Duplicant
31%inclusion119 decks379 decks
31%synergy
Bronze Walrus
31%inclusion117 decks379 decks
30%synergy
Pashalik Mons
30%inclusion115 decks379 decks
28%synergy
Emrakul's Hatcher
29%inclusion109 decks379 decks
28%synergy
Munitions Expert
28%inclusion105 decks379 decks
26%synergy
Zealous Conscripts
27%inclusion104 decks379 decks
25%synergy
Mogg War Marshal
27%inclusion104 decks379 decks
25%synergy
Anger
27%inclusion101 decks379 decks
14%synergy
Warteye Witch
26%inclusion97 decks379 decks
25%synergy
Boggart Cursecrafter
25%inclusion53 decks209 decks
20%synergy
Conspicuous Snoop
25%inclusion94 decks379 decks
23%synergy
Chainer, Nightmare Adept
25%inclusion93 decks379 decks
17%synergy
Pinnacle Monk
25%inclusion93 decks379 decks
17%synergy
Imperial Recruiter
23%inclusion89 decks379 decks
19%synergy
Crypt Ghast
23%inclusion89 decks379 decks
21%synergy
Treasonous Ogre
23%inclusion87 decks379 decks
20%synergy
Goblin King
23%inclusion87 decks379 decks
21%synergy
Krenko, Tin Street Kingpin
23%inclusion87 decks379 decks
19%synergy
Marionette Master
22%inclusion85 decks379 decks
17%synergy
Goblin Sharpshooter
22%inclusion82 decks379 decks
20%synergy
Marionette Apprentice
21%inclusion80 decks379 decks
12%synergy
Goblin Recruiter
21%inclusion80 decks379 decks
20%synergy
Boggart Harbinger
21%inclusion80 decks379 decks
19%synergy
Frogtosser Banneret
21%inclusion78 decks379 decks
19%synergy
Hobgoblin Bandit Lord
20%inclusion76 decks379 decks
19%synergy
Mayhem Devil
20%inclusion76 decks379 decks
-4%synergy
Instants
Valakut Awakening
45%inclusion170 decks379 decks
37%synergy
Chaos Warp
27%inclusion103 decks379 decks
-20%synergy
Fire Prophecy
27%inclusion103 decks379 decks
27%synergy
Volcanic Spite
26%inclusion99 decks379 decks
26%synergy
Dark Ritual
21%inclusion79 decks379 decks
-21%synergy
Brightstone Ritual
17%inclusion63 decks379 decks
15%synergy
Terminate
17%inclusion63 decks379 decks
-23%synergy
Rakdos Charm
15%inclusion56 decks379 decks
-29%synergy
Bedevil
13%inclusion51 decks379 decks
-21%synergy
Fell the Profane
13%inclusion48 decks379 decks
0%synergy
Malakir Rebirth
11%inclusion42 decks379 decks
-4%synergy
Battle Hymn
7.9%inclusion30 decks379 decks
7%synergy
Deflecting Swat
7.7%inclusion29 decks379 decks
-13%synergy
Village Rites
6.9%inclusion26 decks379 decks
-9%synergy
Abrade
6.9%inclusion26 decks379 decks
-15%synergy
Withering Torment
6.1%inclusion23 decks378 decks
-16%synergy
Deadly Rollick
6.1%inclusion23 decks379 decks
-16%synergy
Lightning Bolt
5.8%inclusion22 decks379 decks
-12%synergy
Manhole Missile
5.5%inclusion9 decks165 decks
5%synergy
Culling the Weak
5.0%inclusion19 decks379 decks
-1%synergy
Sorceries
Blasphemous Act
24%inclusion92 decks379 decks
-26%synergy
Read the Bones
21%inclusion81 decks379 decks
9%synergy
Into the Fire
20%inclusion76 decks379 decks
19%synergy
Feed the Swarm
18%inclusion70 decks379 decks
-23%synergy
Faithless Looting
16%inclusion62 decks379 decks
-11%synergy
Vandalblast
13%inclusion48 decks379 decks
-18%synergy
Dread Return
11%inclusion43 decks379 decks
7%synergy
Agadeem's Awakening
11%inclusion40 decks379 decks
7%synergy
Doomsday
9.0%inclusion34 decks379 decks
8%synergy
Living Death
9.0%inclusion34 decks379 decks
5%synergy
Victimize
8.7%inclusion33 decks379 decks
-6%synergy
Toxic Deluge
8.7%inclusion33 decks379 decks
-9%synergy
Reanimate
7.9%inclusion30 decks379 decks
-15%synergy
Mana Geyser
7.1%inclusion27 decks379 decks
-5%synergy
Sundering Eruption
7.1%inclusion27 decks379 decks
2%synergy
Sinister Waltz
6.9%inclusion26 decks379 decks
5%synergy
Diabolic Intent
6.6%inclusion25 decks379 decks
-2%synergy
Diabolic Tutor
6.6%inclusion25 decks379 decks
1%synergy
Goblin War Strike
6.3%inclusion24 decks379 decks
6%synergy
Grub's Command
6.2%inclusion13 decks211 decks
3%synergy
Patriarch's Bidding
6.1%inclusion23 decks379 decks
3%synergy
Utility Artifacts
Skullclamp
24%inclusion92 decks379 decks
14%synergy
Lightning Greaves
21%inclusion81 decks379 decks
-14%synergy
Teferi's Puzzle Box
21%inclusion78 decks379 decks
20%synergy
Cloak and Dagger
18%inclusion68 decks379 decks
18%synergy
Crystal Ball
18%inclusion67 decks379 decks
17%synergy
Reito Lantern
16%inclusion61 decks379 decks
16%synergy
Swiftfoot Boots
16%inclusion60 decks379 decks
-16%synergy
Desecrated Tomb
13%inclusion48 decks379 decks
12%synergy
Phyrexian Altar
13%inclusion48 decks379 decks
7%synergy
Darksteel Pendant
12%inclusion44 decks379 decks
11%synergy
Soldevi Digger
9.2%inclusion35 decks379 decks
9%synergy
Illusionist's Bracers
8.4%inclusion32 decks379 decks
8%synergy
Goblin Charbelcher
7.7%inclusion29 decks379 decks
7%synergy
Crucible of Worlds
6.3%inclusion24 decks379 decks
6%synergy
Thornbite Staff
5.0%inclusion19 decks379 decks
4%synergy
Enchantments
Goblin Bombardment
30%inclusion114 decks379 decks
20%synergy
Impact Tremors
26%inclusion97 decks379 decks
14%synergy
Braid of Fire
18%inclusion68 decks379 decks
16%synergy
Mana Echoes
15%inclusion57 decks379 decks
14%synergy
Boggart Mischief
11%inclusion23 decks211 decks
6%synergy
Shared Animosity
8.2%inclusion31 decks379 decks
5%synergy
Phyrexian Arena
7.4%inclusion28 decks379 decks
-16%synergy
Thran Vigil
5.5%inclusion21 decks379 decks
4%synergy
Mindmoil
5.5%inclusion21 decks379 decks
5%synergy
Shadows of the Past
5.5%inclusion21 decks379 decks
5%synergy
Black Market
5.3%inclusion20 decks379 decks
0%synergy
Fires of Invention
5.3%inclusion20 decks379 decks
5%synergy
Utility Lands
Zhalfirin Void
41%inclusion154 decks379 decks
39%synergy
Buried Ruin
35%inclusion133 decks379 decks
32%synergy
Bojuka Bog
28%inclusion105 decks379 decks
-8%synergy
Phyrexian Tower
27%inclusion102 decks379 decks
16%synergy
Urborg, Tomb of Yawgmoth
24%inclusion90 decks379 decks
5%synergy
Vault of Whispers
20%inclusion75 decks379 decks
14%synergy
Great Furnace
20%inclusion75 decks379 decks
13%synergy
Three Tree City
12%inclusion44 decks378 decks
9%synergy
Temple of the False God
10%inclusion38 decks379 decks
0%synergy
Spinerock Knoll
10%inclusion37 decks379 decks
0%synergy
Nykthos, Shrine to Nyx
10%inclusion37 decks379 decks
8%synergy
Den of the Bugbear
9.2%inclusion35 decks379 decks
7%synergy
Takenuma, Abandoned Mire
8.7%inclusion33 decks379 decks
0%synergy
Cabal Coffers
8.2%inclusion31 decks379 decks
-1%synergy
Drownyard Temple
8.2%inclusion31 decks379 decks
7%synergy
Isolated Watchtower
7.7%inclusion29 decks379 decks
7%synergy
Inventors' Fair
7.1%inclusion27 decks379 decks
5%synergy
Castle Embereth
7.1%inclusion27 decks379 decks
4%synergy
Darksteel Citadel
6.6%inclusion25 decks379 decks
2%synergy
High Market
6.3%inclusion24 decks379 decks
2%synergy
Fire Nation Palace
6.1%inclusion15 decks247 decks
1%synergy
Urza's Saga
6.1%inclusion23 decks379 decks
0%synergy
Spymaster's Vault
5.5%inclusion21 decks379 decks
2%synergy
Command Beacon
5.3%inclusion20 decks379 decks
-1%synergy
Dakmor Salvage
5.0%inclusion19 decks379 decks
4%synergy
Mana Artifacts
Sol Ring
79%inclusion298 decks379 decks
-7%synergy
Arcane Signet
46%inclusion176 decks379 decks
-35%synergy
Rakdos Signet
32%inclusion122 decks379 decks
-26%synergy
Thran Turbine
32%inclusion122 decks379 decks
31%synergy
Talisman of Indulgence
28%inclusion107 decks379 decks
-27%synergy
Fellwar Stone
10%inclusion37 decks379 decks
-24%synergy
Mind Stone
6.9%inclusion26 decks379 decks
-21%synergy
Lands
Mountain
97%inclusion368 decks379 decks
0%synergy
Swamp
97%inclusion368 decks379 decks
-1%synergy
Command Tower
86%inclusion327 decks379 decks
0%synergy
Dragonskull Summit
65%inclusion245 decks379 decks
1%synergy
Temple of Malice
59%inclusion223 decks379 decks
26%synergy
Smoldering Marsh
57%inclusion216 decks379 decks
-6%synergy
Blood Crypt
55%inclusion210 decks379 decks
9%synergy
Sulfurous Springs
51%inclusion195 decks379 decks
4%synergy
Valakut Awakening
45%inclusion170 decks379 decks
37%synergy
Luxury Suite
42%inclusion160 decks379 decks
4%synergy
Graven Cairns
42%inclusion158 decks379 decks
10%synergy
Boggart Trawler
40%inclusion153 decks379 decks
33%synergy
Path of Ancestry
40%inclusion153 decks379 decks
24%synergy
Bloodstained Mire
38%inclusion145 decks379 decks
5%synergy
Shadowblood Ridge
34%inclusion129 decks379 decks
-1%synergy
Rakdos Carnarium
33%inclusion124 decks379 decks
1%synergy
Foreboding Ruins
32%inclusion123 decks379 decks
-13%synergy
Tainted Peak
30%inclusion115 decks379 decks
-13%synergy
Haunted Ridge
29%inclusion111 decks379 decks
-7%synergy
Crystal Grotto
27%inclusion104 decks379 decks
27%synergy
Blightstep Pathway
25%inclusion94 decks379 decks
2%synergy
Pinnacle Monk
25%inclusion93 decks379 decks
17%synergy
Blazemire Verge
24%inclusion92 decks378 decks
-6%synergy
Exotic Orchard
21%inclusion81 decks379 decks
-10%synergy
The Grey Havens
21%inclusion78 decks379 decks
20%synergy
Raucous Theater
20%inclusion74 decks379 decks
-2%synergy
Auntie's Hovel
18%inclusion67 decks379 decks
16%synergy
Badlands
16%inclusion59 decks379 decks
2%synergy
Evolving Wilds
15%inclusion57 decks379 decks
-6%synergy
Blackcleave Cliffs
15%inclusion57 decks379 decks
-5%synergy
Canyon Slough
14%inclusion53 decks379 decks
-6%synergy
Fell the Profane
13%inclusion48 decks379 decks
0%synergy
Cavern of Souls
13%inclusion48 decks379 decks
8%synergy
Rumble Arena
13%inclusion31 decks245 decks
12%synergy
Malakir Rebirth
11%inclusion42 decks379 decks
-4%synergy
Terramorphic Expanse
11%inclusion41 decks379 decks
-5%synergy
Agadeem's Awakening
11%inclusion40 decks379 decks
7%synergy
Opal Palace
10%inclusion37 decks379 decks
8%synergy
Blackbloom Rogue
9.5%inclusion36 decks379 decks
9%synergy
Polluted Delta
9.2%inclusion35 decks379 decks
1%synergy
Myriad Landscape
8.7%inclusion33 decks379 decks
-9%synergy
Wooded Foothills
8.2%inclusion31 decks379 decks
1%synergy
Arid Mesa
8.2%inclusion31 decks379 decks
0%synergy
Fabled Passage
7.9%inclusion30 decks379 decks
-1%synergy
Plaza of Heroes
7.7%inclusion29 decks379 decks
6%synergy
Bloodfell Caves
7.7%inclusion29 decks379 decks
-11%synergy
Scalding Tarn
7.7%inclusion29 decks379 decks
1%synergy
Prismatic Vista
7.4%inclusion28 decks379 decks
2%synergy
Mount Doom
7.4%inclusion28 decks379 decks
-9%synergy
Eclipsed Realms
7.1%inclusion15 decks210 decks
5%synergy
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