Grenzo, Dungeon Warden (Commander) - Upgraded Sacrifice

Grenzo, Dungeon Warden
Rank #542
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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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Lands
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Dark Fortress
100%inclusion1 decks1 decks
90%synergy
Great Fierce Bee
100%inclusion1 decks1 decks
100%synergy
High Synergy Cards
The Cauldron of Eternity
100%inclusion5 decks5 decks
99%synergy
Warteye Witch
80%inclusion4 decks5 decks
79%synergy
Junktroller
80%inclusion4 decks5 decks
79%synergy
Hoverstone Pilgrim
80%inclusion4 decks5 decks
79%synergy
Heartstone
80%inclusion4 decks5 decks
78%synergy
Viscera Seer
80%inclusion4 decks5 decks
71%synergy
Ashnod's Altar
80%inclusion4 decks5 decks
70%synergy
Game Changers
Demonic Tutor
20%inclusion1 decks5 decks
2%synergy
Orcish Bowmasters
20%inclusion1 decks5 decks
9%synergy
Creatures
Big Mother Mouser
100%inclusion1 decks1 decks
100%synergy
Dimension X Pizzasaur
100%inclusion1 decks1 decks
100%synergy
Priest of Urabrask
60%inclusion3 decks5 decks
58%synergy
Workhorse
60%inclusion3 decks5 decks
59%synergy
Woe Strider
60%inclusion3 decks5 decks
58%synergy
Crypt Ghast
60%inclusion3 decks5 decks
58%synergy
Emrakul's Hatcher
60%inclusion3 decks5 decks
60%synergy
Pitiless Plunderer
60%inclusion3 decks5 decks
47%synergy
Pit Automaton
60%inclusion3 decks5 decks
60%synergy
Priest of Gix
60%inclusion3 decks5 decks
58%synergy
Threefold Thunderhulk
60%inclusion3 decks5 decks
59%synergy
Zulaport Cutthroat
60%inclusion3 decks5 decks
52%synergy
Sling-Gang Lieutenant
60%inclusion3 decks5 decks
56%synergy
Epitaph Golem
60%inclusion3 decks5 decks
60%synergy
Mahadi, Emporium Master
60%inclusion3 decks5 decks
47%synergy
Blood Artist
60%inclusion3 decks5 decks
42%synergy
Ravenous Chupacabra
60%inclusion3 decks5 decks
58%synergy
Twilight Diviner
50%inclusion1 decks2 decks
48%synergy
Palladium Myr
40%inclusion2 decks5 decks
39%synergy
Catalyst Elemental
40%inclusion2 decks5 decks
40%synergy
Marionette Apprentice
40%inclusion2 decks5 decks
31%synergy
Varragoth, Bloodsky Sire
40%inclusion2 decks5 decks
37%synergy
Bronze Walrus
40%inclusion2 decks5 decks
40%synergy
Mayhem Devil
40%inclusion2 decks5 decks
15%synergy
Plaguecrafter
40%inclusion2 decks5 decks
36%synergy
Iron Myr
40%inclusion2 decks5 decks
38%synergy
Mirkwood Bats
40%inclusion2 decks5 decks
26%synergy
Falkenrath Noble
40%inclusion2 decks5 decks
36%synergy
Barkform Harvester
40%inclusion2 decks5 decks
39%synergy
Goblin Instigator
40%inclusion2 decks5 decks
39%synergy
Reito Sentinel
40%inclusion2 decks5 decks
40%synergy
Siege-Gang Commander
40%inclusion2 decks5 decks
36%synergy
Meteor Golem
40%inclusion2 decks5 decks
38%synergy
Myr Retriever
40%inclusion2 decks5 decks
38%synergy
Totentanz, Swarm Piper
40%inclusion2 decks5 decks
39%synergy
Goblin Engineer
40%inclusion2 decks5 decks
36%synergy
Canal Dredger
40%inclusion2 decks5 decks
40%synergy
Tomb Trawler
40%inclusion2 decks5 decks
39%synergy
Murderous Redcap
40%inclusion2 decks5 decks
36%synergy
Pawn of Ulamog
40%inclusion2 decks5 decks
37%synergy
Clone Shell
40%inclusion2 decks5 decks
40%synergy
Beetleback Chief
40%inclusion2 decks5 decks
39%synergy
Gray Merchant of Asphodel
40%inclusion2 decks5 decks
30%synergy
Leaden Myr
40%inclusion2 decks5 decks
38%synergy
The Walls of Ba Sing Se
33%inclusion1 decks3 decks
33%synergy
Umbral Collar Zealot
25%inclusion1 decks4 decks
22%synergy
Rust Harvester
25%inclusion1 decks4 decks
25%synergy
Vincent Valentine
25%inclusion1 decks4 decks
24%synergy
Weftstalker Ardent
25%inclusion1 decks4 decks
21%synergy
Solemn Simulacrum
20%inclusion1 decks5 decks
1%synergy
Instants
Chaos Warp
20%inclusion1 decks5 decks
-27%synergy
Brightstone Ritual
20%inclusion1 decks5 decks
18%synergy
Volcanic Spite
20%inclusion1 decks5 decks
20%synergy
Magma Jet
20%inclusion1 decks5 decks
20%synergy
Fanatical Offering
20%inclusion1 decks5 decks
18%synergy
Deadly Dispute
20%inclusion1 decks5 decks
-8%synergy
Battle Hymn
20%inclusion1 decks5 decks
18%synergy
Inordinate Rage
20%inclusion1 decks5 decks
20%synergy
Poison the Cup
20%inclusion1 decks5 decks
19%synergy
Rakdos Charm
20%inclusion1 decks5 decks
-23%synergy
Play with Fire
20%inclusion1 decks5 decks
20%synergy
Coming In Hot
20%inclusion1 decks5 decks
20%synergy
Malakir Rebirth
20%inclusion1 decks5 decks
5%synergy
Fake Your Own Death
20%inclusion1 decks5 decks
13%synergy
Fire Prophecy
20%inclusion1 decks5 decks
19%synergy
Demon's Due
20%inclusion1 decks5 decks
20%synergy
Gravepurge
20%inclusion1 decks5 decks
20%synergy
Saw in Half
20%inclusion1 decks5 decks
8%synergy
Nasty End
20%inclusion1 decks5 decks
16%synergy
Kazuul's Fury
20%inclusion1 decks5 decks
16%synergy
Valakut Awakening
20%inclusion1 decks5 decks
12%synergy
Sorceries
Terror Tide
20%inclusion1 decks5 decks
20%synergy
Eldritch Pact
20%inclusion1 decks5 decks
20%synergy
Harsh Scrutiny
20%inclusion1 decks5 decks
20%synergy
Dread Return
20%inclusion1 decks5 decks
16%synergy
Sinister Waltz
20%inclusion1 decks5 decks
18%synergy
Read the Bones
20%inclusion1 decks5 decks
8%synergy
Blasphemous Act
20%inclusion1 decks5 decks
-31%synergy
Toxic Deluge
20%inclusion1 decks5 decks
3%synergy
Macabre Waltz
20%inclusion1 decks5 decks
19%synergy
Dreadbore
20%inclusion1 decks5 decks
15%synergy
Bolt of Keranos
20%inclusion1 decks5 decks
20%synergy
Throes of Chaos
20%inclusion1 decks5 decks
19%synergy
Into the Fire
20%inclusion1 decks5 decks
19%synergy
Tormenting Voice
20%inclusion1 decks5 decks
16%synergy
Utility Artifacts
Jar of Eyeballs
40%inclusion2 decks5 decks
40%synergy
Darksteel Pendant
40%inclusion2 decks5 decks
40%synergy
Tel-Jilad Stylus
40%inclusion2 decks5 decks
39%synergy
Reito Lantern
40%inclusion2 decks5 decks
40%synergy
Weatherlight Compleated
20%inclusion1 decks5 decks
20%synergy
Desecrated Tomb
20%inclusion1 decks5 decks
19%synergy
Unwinding Clock
20%inclusion1 decks5 decks
20%synergy
The Ozolith
20%inclusion1 decks5 decks
18%synergy
Illusionist's Bracers
20%inclusion1 decks5 decks
19%synergy
Moonsilver Key
20%inclusion1 decks5 decks
20%synergy
Teferi's Puzzle Box
20%inclusion1 decks5 decks
19%synergy
Cauldron of Souls
20%inclusion1 decks5 decks
19%synergy
Cloak and Dagger
20%inclusion1 decks5 decks
20%synergy
Panharmonicon
20%inclusion1 decks5 decks
19%synergy
Phyrexian Altar
20%inclusion1 decks5 decks
14%synergy
Crystal Ball
20%inclusion1 decks5 decks
20%synergy
Agatha's Soul Cauldron
20%inclusion1 decks5 decks
18%synergy
Lightning Greaves
20%inclusion1 decks5 decks
-15%synergy
Enchantments
All Will Be One
40%inclusion2 decks5 decks
37%synergy
Fists of the Demigod
20%inclusion1 decks5 decks
19%synergy
Fires of Invention
20%inclusion1 decks5 decks
20%synergy
Agent of the Iron Throne
20%inclusion1 decks5 decks
17%synergy
Mana Echoes
20%inclusion1 decks5 decks
19%synergy
Mindmoil
20%inclusion1 decks5 decks
20%synergy
Braid of Fire
20%inclusion1 decks5 decks
18%synergy
Impact Tremors
20%inclusion1 decks5 decks
9%synergy
Shadows of the Past
20%inclusion1 decks5 decks
20%synergy
The Witch's Vanity
20%inclusion1 decks5 decks
20%synergy
Agent of the Shadow Thieves
20%inclusion1 decks5 decks
19%synergy
One Ring to Rule Them All
20%inclusion1 decks5 decks
20%synergy
Goblin Bombardment
20%inclusion1 decks5 decks
10%synergy
Utility Lands
Buried Ruin
60%inclusion3 decks5 decks
57%synergy
Vault of Whispers
40%inclusion2 decks5 decks
34%synergy
Clive's Hideaway
25%inclusion1 decks4 decks
25%synergy
Kavaron, Memorial World
25%inclusion1 decks4 decks
25%synergy
Pit of Offerings
20%inclusion1 decks5 decks
20%synergy
Bojuka Bog
20%inclusion1 decks5 decks
-16%synergy
Zhalfirin Void
20%inclusion1 decks5 decks
19%synergy
Phyrexian Tower
20%inclusion1 decks5 decks
9%synergy
Mortuary Mire
20%inclusion1 decks5 decks
15%synergy
Howltooth Hollow
20%inclusion1 decks5 decks
20%synergy
Tectonic Edge
20%inclusion1 decks5 decks
20%synergy
Urza's Saga
20%inclusion1 decks5 decks
14%synergy
Spinerock Knoll
20%inclusion1 decks5 decks
11%synergy
Restless Vents
20%inclusion1 decks5 decks
16%synergy
Cabal Coffers
20%inclusion1 decks5 decks
11%synergy
Command Beacon
20%inclusion1 decks5 decks
14%synergy
Minas Morgul, Dark Fortress
20%inclusion1 decks5 decks
18%synergy
High Market
20%inclusion1 decks5 decks
16%synergy
Inventors' Fair
20%inclusion1 decks5 decks
18%synergy
Detection Tower
20%inclusion1 decks5 decks
20%synergy
Hidden Volcano
20%inclusion1 decks5 decks
19%synergy
Temple of the False God
20%inclusion1 decks5 decks
10%synergy
Urborg, Tomb of Yawgmoth
20%inclusion1 decks5 decks
1%synergy
Great Furnace
20%inclusion1 decks5 decks
14%synergy
Mana Artifacts
Sol Ring
80%inclusion4 decks5 decks
-6%synergy
Arcane Signet
40%inclusion2 decks5 decks
-42%synergy
Thran Turbine
40%inclusion2 decks5 decks
39%synergy
Lantern of Revealing
20%inclusion1 decks5 decks
20%synergy
Talisman of Indulgence
20%inclusion1 decks5 decks
-35%synergy
Rakdos Signet
20%inclusion1 decks5 decks
-37%synergy
Seer's Lantern
20%inclusion1 decks5 decks
20%synergy
Vessel of Endless Rest
20%inclusion1 decks5 decks
20%synergy
Lands
Command Tower
100%inclusion5 decks5 decks
14%synergy
Swamp
100%inclusion5 decks5 decks
2%synergy
Mountain
100%inclusion5 decks5 decks
2%synergy
Shadowblood Ridge
60%inclusion3 decks5 decks
25%synergy
Smoldering Marsh
60%inclusion3 decks5 decks
-4%synergy
Graven Cairns
60%inclusion3 decks5 decks
28%synergy
Luxury Suite
60%inclusion3 decks5 decks
22%synergy
Blood Crypt
40%inclusion2 decks5 decks
-8%synergy
Blackcleave Cliffs
40%inclusion2 decks5 decks
20%synergy
Dragonskull Summit
40%inclusion2 decks5 decks
-24%synergy
Temple of Malice
40%inclusion2 decks5 decks
8%synergy
Blightstep Pathway
40%inclusion2 decks5 decks
18%synergy
Crystal Grotto
40%inclusion2 decks5 decks
39%synergy
Rumble Arena
33%inclusion1 decks3 decks
33%synergy
Vector, Imperial Capital
25%inclusion1 decks4 decks
23%synergy
Escape Tunnel
20%inclusion1 decks5 decks
19%synergy
The Mycosynth Gardens
20%inclusion1 decks5 decks
19%synergy
Raucous Theater
20%inclusion1 decks5 decks
-2%synergy
Captivating Cave
20%inclusion1 decks5 decks
20%synergy
Foreboding Ruins
20%inclusion1 decks5 decks
-26%synergy
Rocky Tar Pit
20%inclusion1 decks5 decks
18%synergy
Blazemire Verge
20%inclusion1 decks5 decks
-11%synergy
Mount Doom
20%inclusion1 decks5 decks
4%synergy
The Grey Havens
20%inclusion1 decks5 decks
19%synergy
Malakir Rebirth
20%inclusion1 decks5 decks
5%synergy
Evolving Wilds
20%inclusion1 decks5 decks
-0%synergy
Tainted Peak
20%inclusion1 decks5 decks
-23%synergy
Path of Ancestry
20%inclusion1 decks5 decks
4%synergy
Thriving Moor
20%inclusion1 decks5 decks
18%synergy
Haunted Ridge
20%inclusion1 decks5 decks
-16%synergy
Sulfurous Springs
20%inclusion1 decks5 decks
-28%synergy
Kazuul's Fury
20%inclusion1 decks5 decks
16%synergy
Bloodstained Mire
20%inclusion1 decks5 decks
-14%synergy
Valakut Awakening
20%inclusion1 decks5 decks
12%synergy
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