Havoc Festival + Archfiend of Despair

Havoc Festival
Archfiend of Despair

Requires
Havoc Festival must be on the battlefield. Archfiend of Despair must be on the battlefield.
Steps
  1. At the beginning of each opponent's upkeep, Havoc Festival triggers, causing them to lose half their life total, rounded up.
  2. At the beginning of their end step, Archfiend of Despair triggers, causing each opponent to lose life equal to the life they lost this turn.
  3. The opponent whose turn it is loses the game due to having zero or less life.
  4. Repeat during each other opponent's turn.
Results
Each opponent loses the game. Near-infinite lifeloss.

Rakdos, Lord of Riots
2.98% of 7529 decks 224 decks
Mogis, God of Slaughter
2.82% of 3763 decks 106 decks
Rowan, Scion of War
1.05% of 8585 decks 90 decks
The Lord of Pain
3.94% of 1878 decks 74 decks
Valgavoth, Harrower of Souls
0.81% of 8567 decks 69 decks
Yurlok of Scorch Thrash
1.01% of 6351 decks 64 decks
Rakdos, the Showstopper
4.58% of 1222 decks 56 decks
Rakdos, Patron of Chaos
6.73% of 743 decks 50 decks
Xantcha, Sleeper Agent
1.48% of 3178 decks 47 decks
Kaervek the Merciless
2.91% of 1340 decks 39 decks
Be'lakor, the Dark Master
0.29% of 11041 decks 32 decks
Kardur, Doomscourge
0.39% of 5080 decks 20 decks
Rakdos the Defiler
7.41% of 243 decks 18 decks
Kaalia of the Vast
0.07% of 21053 decks 15 decks
Raphael, Fiendish Savior
0.27% of 4059 decks 11 decks
The Infamous Cruelclaw
0.22% of 4618 decks 10 decks
Abaddon the Despoiler
0.14% of 5156 decks 7 decks
Florian, Voldaren Scion
0.53% of 1134 decks 6 decks
New Cards
Blasphemous Edict
54% of 39 decks +20% synergy
Boltwave
45% of 22 decks +27% synergy
Scrawling Crawler
43% of 56 decks +36% synergy
Blazemire Verge
43% of 255 decks +22% synergy
Withering Torment
42% of 226 decks +23% synergy
High Synergy Cards
Overabundance
53% of 91 decks +52% synergy
Wound Reflection
52% of 1067 decks +51% synergy
Bloodletter of Aclazotz
54% of 638 decks +49% synergy
Heartbeat of Spring
47% of 91 decks +46% synergy
Zhur-Taa Ancient
45% of 91 decks +44% synergy
Belbe, Corrupted Observer
44% of 90 decks +44% synergy
Leyline of Abundance
45% of 91 decks +44% synergy
Rakdos Charm
55% of 1067 decks +41% synergy
Dictate of Karametra
40% of 91 decks +39% synergy
Heartless Hidetsugu
40% of 1067 decks +39% synergy
Top Cards
Blasphemous Act
56% of 1067 decks +22% synergy
Ignoble Hierarch
53% of 85 decks +27% synergy
Chaos Warp
51% of 1067 decks +19% synergy
Assassin's Trophy
51% of 91 decks +20% synergy
Swords to Plowshares
49% of 41 decks -14% synergy
Bedevil
46% of 1061 decks +32% synergy
Lightning Greaves
45% of 1067 decks +20% synergy
Beast Within
44% of 91 decks +5% synergy
Dark Ritual
42% of 1067 decks +20% synergy
Razorkin Needlehead
41% of 273 decks +32% synergy
Creatures
Bloodthirsty Conqueror
40% of 72 decks +29% synergy
The Lord of Pain
40% of 199 decks +24% synergy
Gisela, Blade of Goldnight
39% of 41 decks +33% synergy
Magus of the Vineyard
38% of 91 decks +38% synergy
Birds of Paradise
37% of 91 decks +10% synergy
Nyxbloom Ancient
36% of 91 decks +32% synergy
Gleeful Arsonist
36% of 199 decks +29% synergy
Solphim, Mayhem Dominus
35% of 875 decks +30% synergy
Rakdos, Patron of Chaos
34% of 525 decks +29% synergy
Kardur, Doomscourge
34% of 1033 decks +28% synergy
Seedborn Muse
32% of 91 decks +24% synergy
Perforating Artist
32% of 22 decks +18% synergy
Aurelia, the Warleader
32% of 41 decks +24% synergy
Sower of Discord
32% of 1063 decks +31% synergy
Kaervek the Merciless
30% of 1067 decks +28% synergy
Valgavoth, Harrower of Souls
30% of 273 decks +25% synergy
Master of Cruelties
29% of 1067 decks +26% synergy
Stormfist Crusader
29% of 1050 decks +25% synergy
Bloom Tender
29% of 91 decks +21% synergy
Magus of the Candelabra
27% of 91 decks +27% synergy
Zhur-Taa Druid
27% of 91 decks +25% synergy
Lord of Change
27% of 62 decks +27% synergy
Archfiend of Depravity
27% of 1067 decks +25% synergy
Witch Enchanter
27% of 11 decks +18% synergy
Twinflame Tyrant
26% of 72 decks +15% synergy
Vilis, Broker of Blood
26% of 1054 decks +23% synergy
Rune-Scarred Demon
26% of 1067 decks +24% synergy
Mogis, God of Slaughter
26% of 1067 decks +23% synergy
Esper Sentinel
25% of 36 decks +5% synergy
Avacyn, Angel of Hope
24% of 41 decks +21% synergy
Exalted Flamer of Tzeentch
24% of 62 decks +20% synergy
Solemn Simulacrum
23% of 1067 decks +9% synergy
Abyssal Harvester
23% of 22 decks +8% synergy
Rakdos, Lord of Riots
23% of 1067 decks +20% synergy
Herald of Slaanesh
22% of 952 decks +21% synergy
Linvala, Keeper of Silence
22% of 41 decks +20% synergy
Drana and Linvala
21% of 28 decks +15% synergy
Sheoldred, the Apocalypse
21% of 973 decks +16% synergy
Seeker of Skybreak
21% of 91 decks +20% synergy
Persistent Constrictor
21% of 199 decks +15% synergy
Indulgent Tormentor
20% of 1067 decks +19% synergy
Eternal Witness
20% of 91 decks -1% synergy
Ob Nixilis, Unshackled
20% of 1067 decks +19% synergy
Creeping Bloodsucker
19% of 903 decks +16% synergy
Liesa, Forgotten Archangel
19% of 36 decks +15% synergy
Harvester of Souls
19% of 1067 decks +17% synergy
Rakdos, the Showstopper
19% of 1061 decks +17% synergy
Lord Xander, the Collector
19% of 64 decks +17% synergy
Spark Double
19% of 64 decks +12% synergy
Bloodgift Demon
19% of 1067 decks +18% synergy
Instants
Terminate
40% of 1067 decks +20% synergy
Counterspell
39% of 64 decks -4% synergy
Path to Exile
34% of 41 decks -12% synergy
Heroic Intervention
34% of 91 decks +4% synergy
Revitalizing Repast
30% of 20 decks +18% synergy
Anguished Unmaking
29% of 41 decks +5% synergy
Teferi's Protection
27% of 41 decks +7% synergy
Deflecting Swat
26% of 1047 decks +10% synergy
Blood for the Blood God!
26% of 952 decks +22% synergy
Brainstorm
25% of 64 decks +4% synergy
Cyclonic Rift
23% of 64 decks -4% synergy
Crackling Doom
22% of 41 decks +14% synergy
Vampiric Tutor
22% of 1067 decks +3% synergy
Deadly Rollick
20% of 1047 decks +9% synergy
Enlightened Tutor
20% of 41 decks +2% synergy
Suspended Sentence
19% of 199 decks +15% synergy
Infernal Grasp
16% of 1006 decks +9% synergy
Untimely Malfunction
16% of 244 decks +0% synergy
Tibalt's Trickery
16% of 1033 decks +10% synergy
Lightning Bolt
15% of 1067 decks +4% synergy
Angel's Grace
15% of 41 decks +13% synergy
Boros Charm
15% of 41 decks -10% synergy
Fierce Guardianship
14% of 64 decks -4% synergy
Fell the Profane
14% of 355 decks +2% synergy
Bulk Up
14% of 22 decks +4% synergy
Legolas's Quick Reflexes
13% of 46 decks +10% synergy
Despark
12% of 40 decks -3% synergy
Malakir Rebirth
12% of 1043 decks +4% synergy
Krosan Grip
11% of 91 decks +4% synergy
Mana Drain
11% of 64 decks -4% synergy
Swan Song
11% of 64 decks -6% synergy
An Offer You Can't Refuse
11% of 64 decks -10% synergy
Negate
11% of 64 decks -12% synergy
Bolt Bend
11% of 1057 decks +7% synergy
Tyvar's Stand
11% of 66 decks +5% synergy
Flawless Maneuver
10% of 39 decks +0% synergy
Worldly Tutor
10% of 91 decks -4% synergy
Return to Dust
10% of 41 decks +6% synergy
Silence
10% of 41 decks +3% synergy
Utter End
10% of 41 decks +3% synergy
Valakut Awakening
10% of 1043 decks +3% synergy
Ghostly Flicker
9% of 64 decks +4% synergy
Price of Progress
9% of 1067 decks +8% synergy
Putrefy
9% of 91 decks -7% synergy
Fire Covenant
9% of 1067 decks +5% synergy
Thrill of Possibility
9% of 1050 decks -2% synergy
Seething Song
8% of 1067 decks +3% synergy
Kolaghan's Command
8% of 1067 decks +6% synergy
Red Elemental Blast
8% of 1067 decks +1% synergy
Dig Through Time
8% of 64 decks +3% synergy
Sorceries
Cultivate
40% of 91 decks -7% synergy
Farseek
37% of 91 decks +3% synergy
Feed the Swarm
35% of 1043 decks +17% synergy
Vandalblast
35% of 1067 decks +19% synergy
Rite of Replication
34% of 64 decks +31% synergy
Demonic Tutor
32% of 1067 decks +10% synergy
Exsanguinate
28% of 1067 decks +22% synergy
Torment of Hailfire
28% of 1067 decks +23% synergy
Toxic Deluge
28% of 1067 decks +10% synergy
Jeska's Will
26% of 1040 decks +8% synergy
Sign in Blood
25% of 1067 decks +15% synergy
Three Visits
24% of 91 decks -1% synergy
Nature's Lore
24% of 91 decks -8% synergy
Grab the Prize
23% of 227 decks +16% synergy
Lavalanche
22% of 91 decks +20% synergy
Kodama's Reach
22% of 91 decks -9% synergy
Rampant Growth
21% of 91 decks -14% synergy
Damnation
21% of 1067 decks +13% synergy
Dreadbore
21% of 1067 decks +18% synergy
Sadistic Shell Game
20% of 199 decks +16% synergy
Night's Whisper
19% of 1067 decks +10% synergy
Reanimate
19% of 1067 decks +3% synergy
Bloodsoaked Insight
19% of 355 decks +15% synergy
Read the Bones
18% of 1067 decks +10% synergy
Ruinous Ultimatum
18% of 39 decks -0% synergy
Wrath of God
17% of 41 decks +11% synergy
Bala Ged Recovery
17% of 90 decks +8% synergy
Damn
17% of 36 decks +0% synergy
Demonic Counsel
15% of 273 decks +11% synergy
Farewell
14% of 35 decks +1% synergy
Faithless Looting
14% of 1067 decks -3% synergy
Quantum Misalignment
13% of 38 decks +11% synergy
Fraying Omnipotence
13% of 1064 decks +12% synergy
Revival // Revenge
12% of 40 decks +11% synergy
Last One Standing
12% of 1067 decks +11% synergy
Diabolic Tutor
11% of 1067 decks +5% synergy
Genesis Wave
11% of 91 decks +9% synergy
Ondu Inversion
11% of 38 decks +9% synergy
Wheel of Misfortune
10% of 1040 decks +7% synergy
Grim Tutor
10% of 1067 decks +6% synergy
Collective Voyage
10% of 91 decks +9% synergy
Skyshroud Claim
10% of 91 decks +1% synergy
Disrupt Decorum
10% of 1067 decks +7% synergy
Debt to the Deathless
10% of 41 decks +6% synergy
Vindicate
10% of 41 decks +3% synergy
Austere Command
10% of 41 decks -3% synergy
Peer into the Abyss
10% of 1045 decks +6% synergy
Mana Geyser
10% of 1067 decks +3% synergy
Ancestral Vision
9% of 64 decks +8% synergy
Treasure Cruise
9% of 64 decks +4% synergy
Utility Artifacts
Swiftfoot Boots
31% of 1067 decks +3% synergy
Whip of Erebos
19% of 1067 decks +16% synergy
Bolas's Citadel
17% of 1057 decks +8% synergy
Cryptolith Fragment
16% of 1067 decks +16% synergy
Ankh of Mishra
13% of 1067 decks +13% synergy
Wayfarer's Bauble
13% of 1067 decks +3% synergy
Jet Medallion
12% of 1067 decks +9% synergy
Basilisk Collar
11% of 1067 decks +7% synergy
Mithril Coat
9% of 760 decks +4% synergy
The One Ring
9% of 838 decks +0% synergy
Ruby Medallion
9% of 1067 decks +7% synergy
Bontu's Monument
9% of 1067 decks +7% synergy
Bootleggers' Stash
9% of 81 decks +6% synergy
Mindcrank
8% of 1067 decks +6% synergy
Urza's Incubator
8% of 1067 decks +4% synergy
Tainted Sigil
7% of 41 decks +7% synergy
Shadowspear
7% of 1049 decks +4% synergy
Herald's Horn
7% of 1067 decks +1% synergy
Crawlspace
7% of 1067 decks +6% synergy
Mask of Griselbrand
6% of 1006 decks +5% synergy
Elbrus, the Binding Blade
5% of 1067 decks +5% synergy
Helm of the Host
5% of 1067 decks +2% synergy
Whispersilk Cloak
5% of 1067 decks +2% synergy
Enchantments
Smothering Tithe
38% of 40 decks +13% synergy
Phyrexian Arena
37% of 1067 decks +22% synergy
Eladamri's Vineyard
36% of 91 decks +36% synergy
Helix Pinnacle
36% of 91 decks +35% synergy
Mana Reflection
35% of 91 decks +33% synergy
Painful Quandary
28% of 1067 decks +26% synergy
Descent into Avernus
28% of 985 decks +24% synergy
Exquisite Blood
27% of 1067 decks +22% synergy
Ghostly Prison
27% of 41 decks +15% synergy
Rhystic Study
27% of 64 decks -1% synergy
Spiked Corridor // Torture Pit
25% of 199 decks +19% synergy
Manabarbs
24% of 1067 decks +22% synergy
Reflections of Littjara
23% of 64 decks +18% synergy
Grievous Wound
22% of 255 decks +19% synergy
Fiery Emancipation
21% of 1045 decks +18% synergy
Sulfuric Vortex
19% of 1067 decks +18% synergy
Liliana's Contract
19% of 1064 decks +18% synergy
Instill Energy
19% of 91 decks +18% synergy
Black Market Connections
19% of 985 decks +8% synergy
Captive Audience
17% of 1061 decks +16% synergy
Spiteful Visions
17% of 1067 decks +14% synergy
Dictate of the Twin Gods
16% of 1067 decks +15% synergy
Cindervines
16% of 91 decks +15% synergy
Bloodchief Ascension
16% of 1067 decks +13% synergy
Underworld Dreams
16% of 1067 decks +13% synergy
City on Fire
15% of 830 decks +10% synergy
Axis of Mortality
15% of 41 decks +14% synergy
Land Tax
15% of 41 decks +8% synergy
Roiling Vortex
15% of 1043 decks +13% synergy
Asceticism
14% of 91 decks +11% synergy
Mystic Remora
14% of 64 decks -4% synergy
Spellshock
14% of 1067 decks +13% synergy
No Mercy
14% of 1067 decks +12% synergy
Nature's Chosen
13% of 91 decks +13% synergy
Theater of Horrors
13% of 1061 decks +11% synergy
Polluted Bonds
13% of 1067 decks +12% synergy
Propaganda
12% of 64 decks +1% synergy
Blind Obedience
12% of 41 decks +5% synergy
Rites of Flourishing
12% of 91 decks +10% synergy
Court of Ambition
12% of 1040 decks +10% synergy
The Rollercrusher Ride
11% of 244 decks +9% synergy
Necropotence
11% of 1067 decks +5% synergy
Citadel of Pain
11% of 1067 decks +10% synergy
Animate Dead
10% of 1067 decks +1% synergy
Up the Beanstalk
10% of 49 decks +6% synergy
Sylvan Library
10% of 91 decks -2% synergy
Rule of Law
10% of 41 decks +8% synergy
Sanguine Bond
9% of 1067 decks +4% synergy
Omniscience
9% of 64 decks +7% synergy
War's Toll
9% of 1067 decks +8% synergy
Planeswalkers
Tyvar, Jubilant Brawler
19% of 68 decks +14% synergy
Ob Nixilis, the Adversary
14% of 992 decks +13% synergy
Chandra, Awakened Inferno
8% of 1054 decks +7% synergy
Tasha, the Witch Queen
6% of 63 decks +5% synergy
Geyadrone Dihada
6% of 64 decks +4% synergy
Chandra, Torch of Defiance
6% of 1067 decks +3% synergy
Angrath, the Flame-Chained
6% of 1067 decks +5% synergy
Utility Lands
Bojuka Bog
37% of 1067 decks +7% synergy
Urborg, Tomb of Yawgmoth
36% of 1067 decks +27% synergy
Reliquary Tower
26% of 1067 decks -4% synergy
Cabal Coffers
25% of 1067 decks +14% synergy
Boseiju, Who Endures
22% of 81 decks +3% synergy
Vault of the Archangel
22% of 41 decks +11% synergy
Rogue's Passage
19% of 1067 decks -1% synergy
Kessig Wolf Run
14% of 91 decks -2% synergy
Temple of the False God
14% of 1067 decks +4% synergy
Ancient Tomb
14% of 1067 decks +3% synergy
Restless Fortress
13% of 23 decks +10% synergy
Hall of Heliod's Generosity
12% of 40 decks +6% synergy
Arena of Glory
12% of 339 decks +3% synergy
Leechridden Swamp
12% of 1067 decks +11% synergy
Castle Locthwain
12% of 1050 decks +6% synergy
Otawara, Soaring City
11% of 64 decks -6% synergy
Lair of the Hydra
9% of 85 decks +8% synergy
Witch's Clinic
9% of 1019 decks +8% synergy
Spinerock Knoll
9% of 1067 decks +5% synergy
Shivan Gorge
8% of 1067 decks +7% synergy
Takenuma, Abandoned Mire
7% of 996 decks -3% synergy
Maze of Ith
7% of 1067 decks +4% synergy
Shizo, Death's Storehouse
7% of 1067 decks +2% synergy
Lavaclaw Reaches
6% of 1067 decks +5% synergy
The Black Gate
6% of 740 decks +2% synergy
Nykthos, Shrine to Nyx
5% of 1067 decks -0% synergy
Mortuary Mire
5% of 1067 decks +0% synergy
Mana Artifacts
Sol Ring
91% of 1067 decks +6% synergy
Arcane Signet
81% of 1050 decks +9% synergy
Rakdos Signet
62% of 1067 decks +32% synergy
Talisman of Indulgence
53% of 1067 decks +27% synergy
Talisman of Dominance
48% of 64 decks +17% synergy
Talisman of Creativity
47% of 64 decks +18% synergy
Orzhov Signet
39% of 41 decks +12% synergy
Boros Signet
32% of 41 decks +8% synergy
Talisman of Hierarchy
30% of 40 decks +6% synergy
Izzet Signet
30% of 64 decks +1% synergy
Fellwar Stone
29% of 1067 decks +8% synergy
Dimir Signet
28% of 64 decks -1% synergy
Relic of Sauron
23% of 47 decks +12% synergy
Talisman of Conviction
22% of 40 decks -1% synergy
Mind Stone
21% of 1067 decks +4% synergy
Commander's Sphere
19% of 1067 decks +4% synergy
Golgari Signet
19% of 91 decks +6% synergy
Gruul Signet
18% of 91 decks +6% synergy
Thought Vessel
16% of 1067 decks -0% synergy
Séance Board
13% of 199 decks +11% synergy
Thran Dynamo
11% of 1067 decks +7% synergy
Charcoal Diamond
10% of 1067 decks +5% synergy
Fire Diamond
10% of 1067 decks +4% synergy
Gilded Lotus
9% of 1067 decks +5% synergy
Chromatic Lantern
9% of 1067 decks -1% synergy
Mana Crypt
8% of 1067 decks +0% synergy
Rakdos Locket
7% of 1061 decks +6% synergy
Obelisk of Grixis
6% of 64 decks +5% synergy
Worn Powerstone
6% of 1067 decks +3% synergy
Rakdos Cluestone
5% of 1067 decks +5% synergy
Cursed Mirror
5% of 1019 decks -0% synergy
Lands
Command Tower
86% of 1067 decks +12% synergy
Dragonskull Summit
66% of 1067 decks +35% synergy
Ziatora's Proving Ground
63% of 81 decks +31% synergy
Blood Crypt
61% of 1067 decks +23% synergy
Overgrown Tomb
60% of 91 decks +18% synergy
Stomping Ground
59% of 91 decks +18% synergy
Smoldering Marsh
58% of 1067 decks +26% synergy
Godless Shrine
56% of 41 decks +15% synergy
Luxury Suite
53% of 1067 decks +26% synergy
Crumbling Necropolis
50% of 64 decks +19% synergy
Temple Garden
50% of 10 decks +10% synergy
Undergrowth Stadium
48% of 90 decks +22% synergy
Isolated Chapel
46% of 41 decks +19% synergy
Sacred Foundry
46% of 41 decks +10% synergy
Spire Garden
46% of 91 decks +22% synergy
Savai Triome
46% of 39 decks +19% synergy
Steam Vents
44% of 64 decks +5% synergy
Sulfurous Springs
42% of 1067 decks +22% synergy
Watery Grave
42% of 64 decks +1% synergy
Rootbound Crag
42% of 91 decks +18% synergy
Nomad Outpost
41% of 41 decks +14% synergy
Foreboding Ruins
41% of 1067 decks +25% synergy
Woodland Cemetery
41% of 91 decks +13% synergy
Sunken Hollow
41% of 64 decks +6% synergy
Savage Lands
40% of 91 decks +16% synergy
Haunted Ridge
39% of 1006 decks +23% synergy
Rockfall Vale
39% of 82 decks +17% synergy
Bloodstained Mire
38% of 1067 decks +28% synergy
Graven Cairns
37% of 1067 decks +29% synergy
Clifftop Retreat
37% of 41 decks +8% synergy
Xander's Lounge
36% of 64 decks +9% synergy
Rakdos Carnarium
35% of 1067 decks +21% synergy
Caves of Koilos
34% of 41 decks +6% synergy
Training Center
33% of 64 decks +5% synergy
Vault of Champions
32% of 37 decks +7% synergy
Temple of Malice
32% of 1067 decks +17% synergy
Tainted Peak
31% of 1067 decks +21% synergy
Indatha Triome
30% of 10 decks -1% synergy
Spectator Seating
30% of 37 decks +5% synergy
Morphic Pool
30% of 64 decks +4% synergy
Cinder Glade
30% of 91 decks -9% synergy
Deathcap Glade
30% of 81 decks +16% synergy
Battlefield Forge
29% of 41 decks +4% synergy
Blightstep Pathway
29% of 1033 decks +19% synergy
Raucous Theater
28% of 481 decks +15% synergy
Mount Doom
27% of 836 decks +19% synergy
Exotic Orchard
26% of 1067 decks -10% synergy
Temple of Silence
24% of 41 decks +6% synergy
Shadowblood Ridge
24% of 1067 decks +12% synergy
Drowned Catacomb
23% of 64 decks -2% synergy