Grenzo, Dungeon Warden (Commander) - Core Defenders

Grenzo, Dungeon Warden
Rank #549
3decks
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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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Stone-Giant of High Pass
50%inclusion1 decks2 decks
49%synergy
Great Fierce Bee
50%inclusion1 decks2 decks
50%synergy
Creatures
Tree of Perdition
100%inclusion3 decks3 decks
99%synergy
Spear Spewer
100%inclusion3 decks3 decks
97%synergy
Blight Pile
100%inclusion3 decks3 decks
100%synergy
Crashing Drawbridge
100%inclusion3 decks3 decks
99%synergy
Vent Sentinel
100%inclusion3 decks3 decks
100%synergy
Amaranthine Wall
100%inclusion3 decks3 decks
100%synergy
Shield-Wall Sentinel
100%inclusion3 decks3 decks
100%synergy
Aether Membrane
100%inclusion3 decks3 decks
100%synergy
Junktroller
100%inclusion3 decks3 decks
99%synergy
Walking Bulwark
100%inclusion3 decks3 decks
100%synergy
Suspicious Bookcase
100%inclusion3 decks3 decks
100%synergy
Reito Sentinel
100%inclusion3 decks3 decks
100%synergy
Weathered Sentinels
67%inclusion2 decks3 decks
67%synergy
Excavated Wall
67%inclusion2 decks3 decks
67%synergy
Gleaming Barrier
67%inclusion2 decks3 decks
66%synergy
Thermo-Alchemist
67%inclusion2 decks3 decks
62%synergy
Wall of Junk
67%inclusion2 decks3 decks
67%synergy
Bronze Walrus
67%inclusion2 decks3 decks
66%synergy
Tuktuk Rubblefort
67%inclusion2 decks3 decks
66%synergy
Pit Automaton
67%inclusion2 decks3 decks
66%synergy
Barrier of Bones
67%inclusion2 decks3 decks
67%synergy
Corpse Blockade
67%inclusion2 decks3 decks
67%synergy
Hoverstone Pilgrim
67%inclusion2 decks3 decks
66%synergy
Ravenous Chupacabra
67%inclusion2 decks3 decks
65%synergy
Lobber Crew
67%inclusion2 decks3 decks
66%synergy
Gibbering Barricade
67%inclusion2 decks3 decks
67%synergy
Tomb Trawler
67%inclusion2 decks3 decks
66%synergy
Viscera Seer
67%inclusion2 decks3 decks
58%synergy
Fire Navy Trebuchet
50%inclusion1 decks2 decks
49%synergy
The Walls of Ba Sing Se
50%inclusion1 decks2 decks
49%synergy
Solemn Simulacrum
33%inclusion1 decks3 decks
15%synergy
Barkform Harvester
33%inclusion1 decks3 decks
32%synergy
Nesting Dragon
33%inclusion1 decks3 decks
33%synergy
Wall of Shadows
33%inclusion1 decks3 decks
33%synergy
Cinder Wall
33%inclusion1 decks3 decks
33%synergy
Razorgrass Screen
33%inclusion1 decks3 decks
33%synergy
Pentavus
33%inclusion1 decks3 decks
33%synergy
Emrakul's Hatcher
33%inclusion1 decks3 decks
33%synergy
Marvin, Murderous Mimic
33%inclusion1 decks3 decks
33%synergy
Wall of Souls
33%inclusion1 decks3 decks
33%synergy
Electrostatic Field
33%inclusion1 decks3 decks
30%synergy
Necrotic Ooze
33%inclusion1 decks3 decks
33%synergy
Clockwork Dragon
33%inclusion1 decks3 decks
33%synergy
Ornithopter of Paradise
33%inclusion1 decks3 decks
30%synergy
Woe Strider
33%inclusion1 decks3 decks
31%synergy
Coastal Bulwark
33%inclusion1 decks3 decks
33%synergy
Towering Viewpoint
33%inclusion1 decks3 decks
33%synergy
Imperial Recruiter
33%inclusion1 decks3 decks
29%synergy
Steel Wall
33%inclusion1 decks3 decks
33%synergy
Consulate Skygate
33%inclusion1 decks3 decks
33%synergy
Instants
Fire Prophecy
100%inclusion3 decks3 decks
99%synergy
Manhole Missile
100%inclusion2 decks2 decks
100%synergy
Volcanic Spite
67%inclusion2 decks3 decks
66%synergy
Valakut Awakening
67%inclusion2 decks3 decks
59%synergy
Fell the Profane
33%inclusion1 decks3 decks
20%synergy
Rakdos Charm
33%inclusion1 decks3 decks
-10%synergy
Terminate
33%inclusion1 decks3 decks
-6%synergy
Lightning Volley
33%inclusion1 decks3 decks
33%synergy
Bedevil
33%inclusion1 decks3 decks
0%synergy
Demon's Due
33%inclusion1 decks3 decks
33%synergy
Sorceries
Soul Immolation
50%inclusion1 decks2 decks
49%synergy
Sinister Waltz
33%inclusion1 decks3 decks
32%synergy
Agadeem's Awakening
33%inclusion1 decks3 decks
30%synergy
Read the Bones
33%inclusion1 decks3 decks
22%synergy
Blood Price
33%inclusion1 decks3 decks
33%synergy
Cut // Ribbons
33%inclusion1 decks3 decks
31%synergy
Into the Fire
33%inclusion1 decks3 decks
33%synergy
Tip the Scales
33%inclusion1 decks3 decks
33%synergy
Utility Artifacts
Heartstone
100%inclusion3 decks3 decks
98%synergy
The Cauldron of Eternity
100%inclusion3 decks3 decks
99%synergy
Illusionist's Bracers
67%inclusion2 decks3 decks
66%synergy
Darksteel Pendant
67%inclusion2 decks3 decks
66%synergy
Tel-Jilad Stylus
67%inclusion2 decks3 decks
66%synergy
Crystal Ball
67%inclusion2 decks3 decks
66%synergy
Desecrated Tomb
33%inclusion1 decks3 decks
33%synergy
Ashnod's Altar
33%inclusion1 decks3 decks
23%synergy
Thousand-Year Elixir
33%inclusion1 decks3 decks
33%synergy
Warmonger's Chariot
33%inclusion1 decks3 decks
33%synergy
Surveyor's Scope
33%inclusion1 decks3 decks
33%synergy
Magewright's Stone
33%inclusion1 decks3 decks
33%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
2%synergy
Reito Lantern
33%inclusion1 decks3 decks
33%synergy
Enchantments
Jaws of Defeat
67%inclusion2 decks3 decks
67%synergy
Thran Vigil
33%inclusion1 decks3 decks
32%synergy
Braid of Fire
33%inclusion1 decks3 decks
31%synergy
Shadows of the Past
33%inclusion1 decks3 decks
33%synergy
Havoc Festival
33%inclusion1 decks3 decks
31%synergy
Rain of Gore
33%inclusion1 decks3 decks
33%synergy
Goblin Bombardment
33%inclusion1 decks3 decks
23%synergy
Planeswalkers
Daretti, Ingenious Iconoclast
33%inclusion1 decks3 decks
32%synergy
Utility Lands
Zhalfirin Void
100%inclusion3 decks3 decks
99%synergy
Desert of the Glorified
33%inclusion1 decks3 decks
32%synergy
Desert of the Fervent
33%inclusion1 decks3 decks
32%synergy
Buried Ruin
33%inclusion1 decks3 decks
30%synergy
Isolated Watchtower
33%inclusion1 decks3 decks
33%synergy
Inventors' Fair
33%inclusion1 decks3 decks
32%synergy
Ifnir Deadlands
33%inclusion1 decks3 decks
32%synergy
Drownyard Temple
33%inclusion1 decks3 decks
32%synergy
Sokenzan, Crucible of Defiance
33%inclusion1 decks3 decks
29%synergy
Sanctum of Eternity
33%inclusion1 decks3 decks
32%synergy
Sandstone Needle
33%inclusion1 decks3 decks
33%synergy
Ramunap Ruins
33%inclusion1 decks3 decks
31%synergy
Mana Artifacts
Lantern of Revealing
33%inclusion1 decks3 decks
33%synergy
Sol Ring
33%inclusion1 decks3 decks
-53%synergy
Thran Turbine
33%inclusion1 decks3 decks
33%synergy
Vessel of Endless Rest
33%inclusion1 decks3 decks
33%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
14%synergy
Rakdos Carnarium
100%inclusion3 decks3 decks
70%synergy
Swamp
100%inclusion3 decks3 decks
2%synergy
The Grey Havens
100%inclusion3 decks3 decks
99%synergy
Mountain
100%inclusion3 decks3 decks
2%synergy
Crystal Grotto
100%inclusion3 decks3 decks
99%synergy
Dragonskull Summit
67%inclusion2 decks3 decks
2%synergy
Tainted Peak
67%inclusion2 decks3 decks
23%synergy
Haunted Ridge
67%inclusion2 decks3 decks
30%synergy
Blightstep Pathway
67%inclusion2 decks3 decks
44%synergy
Valakut Awakening
67%inclusion2 decks3 decks
59%synergy
Rumble Arena
50%inclusion1 decks2 decks
50%synergy
Fell the Profane
33%inclusion1 decks3 decks
20%synergy
Shadowblood Ridge
33%inclusion1 decks3 decks
-1%synergy
Myriad Landscape
33%inclusion1 decks3 decks
17%synergy
Smoldering Marsh
33%inclusion1 decks3 decks
-30%synergy
Blood Crypt
33%inclusion1 decks3 decks
-15%synergy
Graven Cairns
33%inclusion1 decks3 decks
1%synergy
Agadeem's Awakening
33%inclusion1 decks3 decks
30%synergy
Blackcleave Cliffs
33%inclusion1 decks3 decks
13%synergy
Reflecting Pool
33%inclusion1 decks3 decks
30%synergy
Boggart Trawler
33%inclusion1 decks3 decks
26%synergy
Temple of Malice
33%inclusion1 decks3 decks
2%synergy
Luxury Suite
33%inclusion1 decks3 decks
-5%synergy
Mount Doom
33%inclusion1 decks3 decks
17%synergy
Study Hall
33%inclusion1 decks3 decks
33%synergy
Pinnacle Monk
33%inclusion1 decks3 decks
26%synergy
Sulfurous Springs
33%inclusion1 decks3 decks
-15%synergy
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