Toxrill, the Corrosive (Commander) - Expensive Optimized -1/-1 Counters

Alternate Names:

Gary, the SnailGary, the Snail

Toxrill, the Corrosive
Rank #246
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Background image for The Best Horror Combos in Commander
Ethan Coover
Oct 20, 2025
Ethan Coover
The Best Horror Combos in Commander
There are plenty of Horror creatures in Magic, but which are the best at comboing? In honor of Halloween, Ethan Coover lists the best 10.
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Yawgmoth, Thran Physician
83%inclusion5 decks6 decks
82%synergy
The Meathook Massacre
83%inclusion5 decks6 decks
78%synergy
Toxic Deluge
100%inclusion6 decks6 decks
74%synergy
Necroskitter
67%inclusion4 decks6 decks
66%synergy
Black Sun's Zenith
67%inclusion4 decks6 decks
64%synergy
Karn's Bastion
67%inclusion4 decks6 decks
64%synergy
Thrummingbird
67%inclusion4 decks6 decks
64%synergy
Blood Artist
67%inclusion4 decks6 decks
62%synergy
Tainted Pact
67%inclusion4 decks6 decks
62%synergy
Imperial Seal
67%inclusion4 decks6 decks
61%synergy
Top Cards
Thassa's Oracle
67%inclusion4 decks6 decks
58%synergy
The One Ring
67%inclusion4 decks6 decks
59%synergy
Dark Ritual
67%inclusion4 decks6 decks
32%synergy
Mana Drain
67%inclusion4 decks6 decks
49%synergy
Flusterstorm
67%inclusion4 decks6 decks
60%synergy
Counterspell
67%inclusion4 decks6 decks
11%synergy
Fierce Guardianship
67%inclusion4 decks6 decks
48%synergy
Mystical Tutor
67%inclusion4 decks6 decks
52%synergy
Game Changers
Ancient Tomb
100%inclusion6 decks6 decks
91%synergy
Demonic Tutor
100%inclusion6 decks6 decks
80%synergy
Cyclonic Rift
100%inclusion6 decks6 decks
76%synergy
Vampiric Tutor
100%inclusion6 decks6 decks
83%synergy
Opposition Agent
83%inclusion5 decks6 decks
75%synergy
Rhystic Study
83%inclusion5 decks6 decks
59%synergy
Mana Vault
83%inclusion5 decks6 decks
78%synergy
Force of Will
83%inclusion5 decks6 decks
72%synergy
Chrome Mox
83%inclusion5 decks6 decks
77%synergy
Mox Diamond
83%inclusion5 decks6 decks
79%synergy
Creatures
Maha, Its Feathers Night
50%inclusion3 decks6 decks
47%synergy
Zulaport Cutthroat
50%inclusion3 decks6 decks
47%synergy
Flux Channeler
50%inclusion3 decks6 decks
47%synergy
Crypt Ghast
50%inclusion3 decks6 decks
48%synergy
Pitiless Plunderer
50%inclusion3 decks6 decks
47%synergy
Massacre Girl, Known Killer
50%inclusion3 decks6 decks
47%synergy
Spitting Dilophosaurus
33%inclusion2 decks6 decks
33%synergy
Sludge Monster
33%inclusion2 decks6 decks
26%synergy
Sheoldred, the Apocalypse
33%inclusion2 decks6 decks
29%synergy
Corrosive Mentor
33%inclusion2 decks6 decks
33%synergy
Viral Drake
33%inclusion2 decks6 decks
33%synergy
Mikaeus, the Unhallowed
33%inclusion2 decks6 decks
28%synergy
Gilded Drake
33%inclusion2 decks6 decks
31%synergy
Sakashima of a Thousand Faces
33%inclusion2 decks6 decks
28%synergy
Massacre Wurm
33%inclusion2 decks6 decks
25%synergy
Blighted Agent
33%inclusion2 decks6 decks
31%synergy
Orcish Bowmasters
33%inclusion2 decks6 decks
26%synergy
Dauthi Voidwalker
33%inclusion2 decks6 decks
21%synergy
Notion Thief
33%inclusion2 decks6 decks
22%synergy
Phyrexian Juggernaut
17%inclusion1 decks6 decks
17%synergy
Puppeteer Clique
17%inclusion1 decks6 decks
14%synergy
Mirkwood Bats
17%inclusion1 decks6 decks
12%synergy
Maralen of the Mornsong
17%inclusion1 decks6 decks
17%synergy
Dark Confidant
17%inclusion1 decks6 decks
16%synergy
Consecrated Sphinx
17%inclusion1 decks6 decks
13%synergy
Morbid Opportunist
17%inclusion1 decks6 decks
13%synergy
Roaming Throne
17%inclusion1 decks6 decks
3%synergy
Ayara, First of Locthwain
17%inclusion1 decks6 decks
13%synergy
Tekuthal, Inquiry Dominus
17%inclusion1 decks6 decks
15%synergy
Spellseeker
17%inclusion1 decks6 decks
15%synergy
Walking Ballista
17%inclusion1 decks6 decks
16%synergy
Malevolent Hermit
17%inclusion1 decks6 decks
15%synergy
Drivnod, Carnage Dominus
17%inclusion1 decks6 decks
15%synergy
Carnifex Demon
17%inclusion1 decks6 decks
17%synergy
Archfiend of Ifnir
17%inclusion1 decks6 decks
15%synergy
Ophiomancer
17%inclusion1 decks6 decks
16%synergy
Massacre Girl
17%inclusion1 decks6 decks
14%synergy
Geralf's Messenger
17%inclusion1 decks6 decks
16%synergy
Vilis, Broker of Blood
17%inclusion1 decks6 decks
15%synergy
Spark Double
17%inclusion1 decks6 decks
6%synergy
Phyrexian Crusader
17%inclusion1 decks6 decks
16%synergy
Sheoldred, Whispering One
17%inclusion1 decks6 decks
11%synergy
Talion, the Kindly Lord
17%inclusion1 decks6 decks
10%synergy
Slaughter Specialist
17%inclusion1 decks6 decks
15%synergy
Kaervek, the Spiteful
17%inclusion1 decks6 decks
16%synergy
Phantasmal Image
17%inclusion1 decks6 decks
12%synergy
Persistent Constrictor
17%inclusion1 decks6 decks
16%synergy
Skinrender
17%inclusion1 decks6 decks
16%synergy
K'rrik, Son of Yawgmoth
17%inclusion1 decks6 decks
16%synergy
Soul Snuffers
17%inclusion1 decks6 decks
17%synergy
Instants
Swan Song
50%inclusion3 decks6 decks
32%synergy
Demonic Consultation
50%inclusion3 decks6 decks
43%synergy
Force of Negation
50%inclusion3 decks6 decks
40%synergy
Deadly Rollick
33%inclusion2 decks6 decks
14%synergy
Chain of Vapor
33%inclusion2 decks6 decks
30%synergy
Brainstorm
33%inclusion2 decks6 decks
3%synergy
Dispel
33%inclusion2 decks6 decks
27%synergy
Delay
33%inclusion2 decks6 decks
30%synergy
Dramatic Reversal
33%inclusion2 decks6 decks
30%synergy
Sudden Spoiling
33%inclusion2 decks6 decks
31%synergy
Pact of Negation
33%inclusion2 decks6 decks
28%synergy
Hero's Downfall
17%inclusion1 decks6 decks
14%synergy
Pongify
17%inclusion1 decks6 decks
2%synergy
Drown in the Loch
17%inclusion1 decks6 decks
-2%synergy
Force of Despair
17%inclusion1 decks6 decks
13%synergy
Mental Misstep
17%inclusion1 decks6 decks
11%synergy
An Offer You Can't Refuse
17%inclusion1 decks6 decks
-13%synergy
Snuff Out
17%inclusion1 decks6 decks
11%synergy
Negate
17%inclusion1 decks6 decks
-16%synergy
Lim-Dûl's Vault
17%inclusion1 decks6 decks
8%synergy
Deadly Dispute
17%inclusion1 decks6 decks
10%synergy
Brain Freeze
17%inclusion1 decks6 decks
16%synergy
Cabal Ritual
17%inclusion1 decks6 decks
12%synergy
Polymorphist's Jest
17%inclusion1 decks6 decks
15%synergy
Fuel for the Cause
17%inclusion1 decks6 decks
16%synergy
Slaughter Pact
17%inclusion1 decks6 decks
16%synergy
Winds of Rebuke
17%inclusion1 decks6 decks
16%synergy
Strix Serenade
17%inclusion1 decks6 decks
12%synergy
Suffocating Fumes
17%inclusion1 decks6 decks
17%synergy
Alchemist's Retrieval
17%inclusion1 decks6 decks
16%synergy
Murder
17%inclusion1 decks6 decks
9%synergy
Infernal Grasp
17%inclusion1 decks6 decks
1%synergy
Ad Nauseam
17%inclusion1 decks6 decks
15%synergy
Arcane Denial
17%inclusion1 decks6 decks
-9%synergy
Radstorm
17%inclusion1 decks6 decks
16%synergy
Narset's Reversal
17%inclusion1 decks6 decks
14%synergy
Spell Pierce
17%inclusion1 decks6 decks
11%synergy
Flatline
17%inclusion1 decks6 decks
14%synergy
Miscast
17%inclusion1 decks6 decks
14%synergy
Waterlogged Teachings
17%inclusion1 decks6 decks
5%synergy
Cower in Fear
17%inclusion1 decks6 decks
17%synergy
Tragic Slip
17%inclusion1 decks6 decks
13%synergy
Dismember
17%inclusion1 decks6 decks
11%synergy
Evacuation
17%inclusion1 decks6 decks
14%synergy
Sorceries
Feed the Swarm
50%inclusion3 decks6 decks
14%synergy
Tezzeret's Gambit
33%inclusion2 decks6 decks
31%synergy
Windfall
17%inclusion1 decks6 decks
3%synergy
Gitaxian Probe
17%inclusion1 decks6 decks
11%synergy
Victimize
17%inclusion1 decks6 decks
3%synergy
Contentious Plan
17%inclusion1 decks6 decks
15%synergy
Torment of Hailfire
17%inclusion1 decks6 decks
15%synergy
Mass Diminish
17%inclusion1 decks6 decks
15%synergy
Tendrils of Agony
17%inclusion1 decks6 decks
16%synergy
Night's Whisper
17%inclusion1 decks6 decks
10%synergy
Buried Alive
17%inclusion1 decks6 decks
9%synergy
Merchant Scroll
17%inclusion1 decks6 decks
16%synergy
Reanimate
17%inclusion1 decks6 decks
-7%synergy
Final Parting
17%inclusion1 decks6 decks
15%synergy
Gruesome Realization
17%inclusion1 decks6 decks
17%synergy
Dark Deal
17%inclusion1 decks6 decks
16%synergy
Beseech the Mirror
17%inclusion1 decks6 decks
14%synergy
Damnation
17%inclusion1 decks6 decks
6%synergy
Rise of the Dark Realms
17%inclusion1 decks6 decks
7%synergy
Grim Tutor
17%inclusion1 decks6 decks
13%synergy
Thoughtseize
17%inclusion1 decks6 decks
16%synergy
Utility Artifacts
Skullclamp
50%inclusion3 decks6 decks
41%synergy
Phyrexian Altar
50%inclusion3 decks6 decks
44%synergy
Contagion Engine
33%inclusion2 decks6 decks
32%synergy
Wishclaw Talisman
33%inclusion2 decks6 decks
29%synergy
Lightning Greaves
33%inclusion2 decks6 decks
6%synergy
The Ozolith
17%inclusion1 decks6 decks
16%synergy
Bolas's Citadel
17%inclusion1 decks6 decks
11%synergy
Teferi's Puzzle Box
17%inclusion1 decks6 decks
16%synergy
Mithril Coat
17%inclusion1 decks6 decks
13%synergy
Contagion Clasp
17%inclusion1 decks6 decks
15%synergy
Ashnod's Altar
17%inclusion1 decks6 decks
9%synergy
Cauldron of Souls
17%inclusion1 decks6 decks
16%synergy
Grafdigger's Cage
17%inclusion1 decks6 decks
14%synergy
Expedition Map
17%inclusion1 decks6 decks
14%synergy
Jet Medallion
17%inclusion1 decks6 decks
9%synergy
Swiftfoot Boots
17%inclusion1 decks6 decks
-8%synergy
Crystal Shard
17%inclusion1 decks6 decks
16%synergy
Isochron Scepter
17%inclusion1 decks6 decks
14%synergy
Grafted Exoskeleton
17%inclusion1 decks6 decks
16%synergy
Basilisk Collar
17%inclusion1 decks6 decks
16%synergy
Enchantments
Inexorable Tide
50%inclusion3 decks6 decks
48%synergy
Nest of Scarabs
33%inclusion2 decks6 decks
32%synergy
Black Market
33%inclusion2 decks6 decks
28%synergy
Grave Pact
33%inclusion2 decks6 decks
28%synergy
Mystic Remora
33%inclusion2 decks6 decks
17%synergy
Night of Souls' Betrayal
33%inclusion2 decks6 decks
33%synergy
Corrupted Conscience
33%inclusion2 decks6 decks
33%synergy
Phyrexian Arena
33%inclusion2 decks6 decks
20%synergy
Counterbalance
17%inclusion1 decks6 decks
15%synergy
Crumbling Ashes
17%inclusion1 decks6 decks
16%synergy
Blowfly Infestation
17%inclusion1 decks6 decks
16%synergy
Contamination
17%inclusion1 decks6 decks
17%synergy
Dictate of Erebos
17%inclusion1 decks6 decks
14%synergy
Copy Artifact
17%inclusion1 decks6 decks
16%synergy
Training Grounds
17%inclusion1 decks6 decks
13%synergy
Necropotence
17%inclusion1 decks6 decks
14%synergy
No Mercy
17%inclusion1 decks6 decks
14%synergy
Bloodchief Ascension
17%inclusion1 decks6 decks
9%synergy
Pestilence
17%inclusion1 decks6 decks
16%synergy
Propaganda
17%inclusion1 decks6 decks
1%synergy
Virtue of Persistence
17%inclusion1 decks6 decks
14%synergy
Bitterblossom
17%inclusion1 decks6 decks
9%synergy
Planeswalkers
Vraska, Betrayal's Sting
17%inclusion1 decks6 decks
15%synergy
Liliana, Dreadhorde General
17%inclusion1 decks6 decks
12%synergy
Narset, Parter of Veils
17%inclusion1 decks6 decks
14%synergy
Utility Lands
Cabal Coffers
67%inclusion4 decks6 decks
56%synergy
Urborg, Tomb of Yawgmoth
67%inclusion4 decks6 decks
47%synergy
Otawara, Soaring City
67%inclusion4 decks6 decks
48%synergy
Takenuma, Abandoned Mire
50%inclusion3 decks6 decks
37%synergy
Reliquary Tower
50%inclusion3 decks6 decks
14%synergy
Bojuka Bog
33%inclusion2 decks6 decks
-6%synergy
Phyrexian Tower
33%inclusion2 decks6 decks
27%synergy
Urza's Saga
33%inclusion2 decks6 decks
28%synergy
Nykthos, Shrine to Nyx
33%inclusion2 decks6 decks
31%synergy
Castle Locthwain
33%inclusion2 decks6 decks
29%synergy
Shizo, Death's Storehouse
17%inclusion1 decks6 decks
8%synergy
Hall of Storm Giants
17%inclusion1 decks6 decks
16%synergy
Arcane Lighthouse
17%inclusion1 decks6 decks
16%synergy
Scavenger Grounds
17%inclusion1 decks6 decks
14%synergy
Inkmoth Nexus
17%inclusion1 decks6 decks
16%synergy
Command Beacon
17%inclusion1 decks6 decks
12%synergy
Field of the Dead
17%inclusion1 decks6 decks
14%synergy
Thespian's Stage
17%inclusion1 decks6 decks
15%synergy
Cephalid Coliseum
17%inclusion1 decks6 decks
11%synergy
Dark Depths
17%inclusion1 decks6 decks
16%synergy
Castle Vantress
17%inclusion1 decks6 decks
12%synergy
Hive of the Eye Tyrant
17%inclusion1 decks6 decks
16%synergy
Mana Artifacts
Arcane Signet
100%inclusion6 decks6 decks
16%synergy
Sol Ring
100%inclusion6 decks6 decks
12%synergy
Dimir Signet
67%inclusion4 decks6 decks
6%synergy
Talisman of Dominance
50%inclusion3 decks6 decks
-9%synergy
Fellwar Stone
50%inclusion3 decks6 decks
19%synergy
Thought Vessel
50%inclusion3 decks6 decks
18%synergy
Mox Opal
50%inclusion3 decks6 decks
46%synergy
Grim Monolith
33%inclusion2 decks6 decks
32%synergy
Lotus Petal
33%inclusion2 decks6 decks
26%synergy
Mox Amber
33%inclusion2 decks6 decks
27%synergy
Mind Stone
33%inclusion2 decks6 decks
4%synergy
Everflowing Chalice
17%inclusion1 decks6 decks
11%synergy
Astral Cornucopia
17%inclusion1 decks6 decks
16%synergy
Chromatic Lantern
17%inclusion1 decks6 decks
15%synergy
Lands
Underground Sea
100%inclusion6 decks6 decks
87%synergy
Swamp
100%inclusion6 decks6 decks
4%synergy
Island
100%inclusion6 decks6 decks
3%synergy
Polluted Delta
100%inclusion6 decks6 decks
69%synergy
Command Tower
83%inclusion5 decks6 decks
-5%synergy
Misty Rainforest
83%inclusion5 decks6 decks
75%synergy
Clearwater Pathway
83%inclusion5 decks6 decks
58%synergy
Verdant Catacombs
83%inclusion5 decks6 decks
76%synergy
Morphic Pool
83%inclusion5 decks6 decks
46%synergy
Marsh Flats
83%inclusion5 decks6 decks
75%synergy
Flooded Strand
83%inclusion5 decks6 decks
74%synergy
Bloodstained Mire
83%inclusion5 decks6 decks
75%synergy
Watery Grave
83%inclusion5 decks6 decks
37%synergy
Reflecting Pool
67%inclusion4 decks6 decks
62%synergy
Scalding Tarn
67%inclusion4 decks6 decks
58%synergy
Fetid Pools
50%inclusion3 decks6 decks
34%synergy
Shipwreck Marsh
50%inclusion3 decks6 decks
10%synergy
Drowned Catacomb
50%inclusion3 decks6 decks
-2%synergy
Gemstone Caverns
50%inclusion3 decks6 decks
45%synergy
Sunken Hollow
50%inclusion3 decks6 decks
-16%synergy
Mana Confluence
50%inclusion3 decks6 decks
44%synergy
Undercity Sewers
33%inclusion2 decks6 decks
14%synergy
Snow-Covered Island
33%inclusion2 decks6 decks
26%synergy
Underground River
33%inclusion2 decks6 decks
-6%synergy
Darkslick Shores
33%inclusion2 decks6 decks
19%synergy
Contaminated Aquifer
33%inclusion2 decks6 decks
27%synergy
Gloomlake Verge
33%inclusion2 decks6 decks
10%synergy
Snow-Covered Swamp
33%inclusion2 decks6 decks
26%synergy
City of Brass
33%inclusion2 decks6 decks
27%synergy
Prismatic Vista
17%inclusion1 decks6 decks
10%synergy
Fabled Passage
17%inclusion1 decks6 decks
9%synergy
Myriad Landscape
17%inclusion1 decks6 decks
-6%synergy
Exotic Orchard
17%inclusion1 decks6 decks
-17%synergy
Ice Tunnel
17%inclusion1 decks6 decks
12%synergy
Darkwater Catacombs
17%inclusion1 decks6 decks
-23%synergy
Tarnished Citadel
17%inclusion1 decks6 decks
16%synergy
Plaza of Heroes
17%inclusion1 decks6 decks
15%synergy
Path of Ancestry
17%inclusion1 decks6 decks
-11%synergy
Choked Estuary
17%inclusion1 decks6 decks
-31%synergy
Sunken Ruins
17%inclusion1 decks6 decks
2%synergy
Waterlogged Teachings
17%inclusion1 decks6 decks
5%synergy
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