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, Patron of Chaos
7.30% of 548 decks 40 decks
Rakdos, the Showstopper
4.54% of 1299 decks 59 decks
Kaervek the Merciless
3.67% of 1252 decks 46 decks
Mogis, God of Slaughter
3.23% of 3433 decks 111 decks
Rakdos, Lord of Riots
2.87% of 6863 decks 197 decks
Xantcha, Sleeper Agent
1.82% of 2690 decks 49 decks
Yurlok of Scorch Thrash
1.29% of 5511 decks 71 decks
Rowan, Scion of War
1.11% of 7020 decks 78 decks
New Cards (5)
Alexios, Deimos of Kosmos
60% of 5 decks +51% synergy
Arena of Glory
35% of 23 decks +27% synergy
Insatiable Avarice
28% of 75 decks +24% synergy
Bloodsoaked Insight
26% of 34 decks +25% synergy
Rakdos, the Muscle
22% of 91 decks +21% synergy
High Synergy Cards (10)
Bloodletter of Aclazotz
59% of 315 decks +56% synergy
Overabundance
54% of 102 decks +54% synergy
Ignoble Hierarch
54% of 93 decks +51% synergy
Wound Reflection
51% of 889 decks +50% synergy
Rakdos Charm
52% of 889 decks +49% synergy
Heartbeat of Spring
49% of 102 decks +49% synergy
Belbe, Corrupted Observer
48% of 100 decks +48% synergy
Rakdos, Patron of Chaos
49% of 199 decks +47% synergy
Zhur-Taa Ancient
47% of 102 decks +47% synergy
Leyline of Abundance
43% of 102 decks +42% synergy
Top Cards (10)
Blasphemous Act
53% of 889 decks +37% synergy
Chaos Warp
51% of 889 decks +35% synergy
Swords to Plowshares
49% of 41 decks +20% synergy
Assassin's Trophy
47% of 102 decks +41% synergy
Bedevil
46% of 881 decks +42% synergy
Mirari's Wake
43% of 14 decks +40% synergy
Terminate
43% of 889 decks +38% synergy
Beast Within
42% of 102 decks +23% synergy
Cultivate
42% of 102 decks +20% synergy
Gisela, Blade of Goldnight
41% of 41 decks +40% synergy
Creatures (50)
Heartless Hidetsugu
39% of 889 decks +39% synergy
Magus of the Vineyard
38% of 102 decks +38% synergy
Birds of Paradise
37% of 102 decks +25% synergy
Nyxbloom Ancient
35% of 102 decks +33% synergy
Master of Cruelties
33% of 889 decks +33% synergy
Seedborn Muse
32% of 102 decks +28% synergy
Kardur, Doomscourge
32% of 845 decks +31% synergy
Solphim, Mayhem Dominus
32% of 566 decks +30% synergy
Sower of Discord
32% of 883 decks +31% synergy
Zhur-Taa Druid
31% of 102 decks +31% synergy
Archfiend of Depravity
31% of 889 decks +30% synergy
Vilis, Broker of Blood
30% of 871 decks +28% synergy
Rune-Scarred Demon
30% of 889 decks +28% synergy
Aurelia, the Warleader
29% of 41 decks +28% synergy
Drana and Linvala
28% of 18 decks +26% synergy
Herald of Slaanesh
26% of 672 decks +26% synergy
Magus of the Candelabra
26% of 102 decks +26% synergy
Kaervek the Merciless
26% of 889 decks +26% synergy
Stormfist Crusader
26% of 865 decks +25% synergy
Bloom Tender
25% of 102 decks +22% synergy
Ob Nixilis, Unshackled
25% of 889 decks +24% synergy
Indulgent Tormentor
24% of 889 decks +23% synergy
Esper Sentinel
24% of 34 decks +14% synergy
Yasharn, Implacable Earth
23% of 13 decks +22% synergy
Solemn Simulacrum
23% of 889 decks +9% synergy
Bloodgift Demon
23% of 889 decks +22% synergy
Lord of Change
23% of 53 decks +22% synergy
Orcus, Prince of Undeath
23% of 816 decks +22% synergy
Klothys, God of Destiny
23% of 102 decks +22% synergy
Ruric Thar, the Unbowed
23% of 102 decks +22% synergy
Creeping Bloodsucker
22% of 595 decks +21% synergy
Avacyn, Angel of Hope
22% of 41 decks +20% synergy
Harvester of Souls
22% of 889 decks +21% synergy
Bloodthirster
22% of 672 decks +21% synergy
Dosan the Falling Leaf
22% of 102 decks +21% synergy
Liesa, Forgotten Archangel
21% of 33 decks +20% synergy
Rakdos, the Showstopper
21% of 881 decks +20% synergy
Exalted Flamer of Tzeentch
21% of 53 decks +20% synergy
Varragoth, Bloodsky Sire
21% of 845 decks +19% synergy
Omnath, Locus of Mana
21% of 102 decks +20% synergy
Sheoldred, the Apocalypse
21% of 705 decks +18% synergy
Rakdos, Lord of Riots
20% of 889 decks +20% synergy
Lord Xander, the Collector
20% of 59 decks +20% synergy
Sire of Insanity
20% of 889 decks +20% synergy
Balor
20% of 764 decks +19% synergy
Eternal Witness
20% of 102 decks +9% synergy
Angelic Arbiter
20% of 41 decks +19% synergy
Linvala, Keeper of Silence
20% of 41 decks +18% synergy
Mogis, God of Slaughter
19% of 889 decks +19% synergy
Neheb, the Eternal
19% of 889 decks +18% synergy
Instants (50)
Dark Ritual
39% of 889 decks +28% synergy
Counterspell
38% of 61 decks +17% synergy
Heroic Intervention
32% of 102 decks +19% synergy
Teferi's Protection
29% of 41 decks +20% synergy
Angel's Grace
27% of 41 decks +26% synergy
Path to Exile
27% of 41 decks +7% synergy
Blood for the Blood God!
25% of 710 decks +24% synergy
Brainstorm
25% of 61 decks +14% synergy
Vampiric Tutor
23% of 889 decks +13% synergy
Deflecting Swat
23% of 860 decks +15% synergy
Cyclonic Rift
20% of 61 decks +6% synergy
Anguished Unmaking
20% of 41 decks +14% synergy
Deadly Rollick
19% of 860 decks +13% synergy
Fell the Profane
18% of 34 decks +10% synergy
Enlightened Tutor
17% of 41 decks +9% synergy
Lightning Bolt
16% of 889 decks +11% synergy
Tibalt's Trickery
16% of 845 decks +13% synergy
Legolas's Quick Reflexes
15% of 34 decks +13% synergy
Crackling Doom
15% of 41 decks +14% synergy
Krosan Grip
14% of 102 decks +10% synergy
Bitter Triumph
13% of 235 decks +10% synergy
Swan Song
13% of 61 decks +5% synergy
Infernal Grasp
13% of 810 decks +9% synergy
Despark
12% of 40 decks +9% synergy
Congregate
12% of 41 decks +12% synergy
Deflecting Palm
12% of 41 decks +11% synergy
Boros Charm
12% of 41 decks +6% synergy
Malakir Rebirth
12% of 857 decks +8% synergy
An Offer You Can't Refuse
12% of 59 decks +2% synergy
Valakut Awakening
11% of 857 decks +8% synergy
Tyvar's Stand
11% of 54 decks +8% synergy
Fierce Guardianship
10% of 61 decks +1% synergy
Negate
10% of 61 decks -2% synergy
Thrill of Possibility
10% of 865 decks +5% synergy
Return to Nature
10% of 102 decks +7% synergy
Return to Dust
10% of 41 decks +8% synergy
Silence
10% of 41 decks +7% synergy
Price of Progress
10% of 889 decks +9% synergy
Fire Covenant
9% of 889 decks +8% synergy
Windgrace's Judgment
9% of 102 decks +8% synergy
Putrefy
9% of 102 decks +5% synergy
Worldly Tutor
9% of 102 decks +2% synergy
Comet Storm
9% of 889 decks +7% synergy
Abrade
8% of 889 decks +3% synergy
Ghostly Flicker
8% of 61 decks +6% synergy
Pongify
8% of 61 decks +2% synergy
Frantic Search
8% of 61 decks +2% synergy
Abrupt Decay
8% of 102 decks +6% synergy
Tear Asunder
8% of 64 decks +6% synergy
Seething Song
8% of 889 decks +5% synergy
Sorceries (50)
Farseek
39% of 102 decks +23% synergy
Vandalblast
39% of 889 decks +31% synergy
Demonic Tutor
36% of 889 decks +24% synergy
Feed the Swarm
33% of 857 decks +24% synergy
Torment of Hailfire
31% of 889 decks +28% synergy
Exsanguinate
30% of 889 decks +27% synergy
Sign in Blood
26% of 889 decks +21% synergy
Dreadbore
25% of 889 decks +24% synergy
Nature's Lore
25% of 102 decks +10% synergy
Jeska's Will
24% of 854 decks +16% synergy
Wrath of God
24% of 41 decks +21% synergy
Three Visits
24% of 102 decks +12% synergy
Toxic Deluge
24% of 889 decks +15% synergy
Lavalanche
23% of 102 decks +22% synergy
Read the Bones
22% of 889 decks +18% synergy
Rite of Replication
21% of 61 decks +19% synergy
Kodama's Reach
21% of 102 decks +5% synergy
Rampant Growth
21% of 102 decks +4% synergy
Ruinous Ultimatum
21% of 39 decks +18% synergy
Damnation
20% of 889 decks +16% synergy
Night's Whisper
20% of 889 decks +15% synergy
Reanimate
19% of 889 decks +11% synergy
Prisoner's Dilemma
19% of 113 decks +17% synergy
Sundering Eruption
18% of 28 decks +14% synergy
Damn
18% of 34 decks +14% synergy
Faithless Looting
15% of 889 decks +7% synergy
Farewell
15% of 33 decks +9% synergy
Bala Ged Recovery
15% of 101 decks +10% synergy
Last One Standing
15% of 889 decks +14% synergy
Rush of Dread
15% of 75 decks +14% synergy
Reverse the Sands
15% of 41 decks +15% synergy
Austere Command
12% of 41 decks +6% synergy
Wheel of Misfortune
12% of 854 decks +9% synergy
Fraying Omnipotence
12% of 884 decks +11% synergy
Grim Tutor
12% of 889 decks +9% synergy
Diabolic Tutor
12% of 889 decks +8% synergy
Tectonic Hazard
11% of 235 decks +9% synergy
Mana Geyser
11% of 889 decks +7% synergy
Rakdos's Return
10% of 889 decks +10% synergy
Genesis Wave
10% of 102 decks +9% synergy
Tempt with Discovery
10% of 102 decks +8% synergy
Decimate
10% of 102 decks +8% synergy
Armageddon
10% of 41 decks +9% synergy
Idyllic Tutor
10% of 41 decks +7% synergy
Syphon Mind
10% of 889 decks +8% synergy
Victimize
10% of 889 decks +4% synergy
Peer into the Abyss
9% of 858 decks +8% synergy
Crackle with Power
9% of 830 decks +8% synergy
Disrupt Decorum
9% of 889 decks +8% synergy
Vanquish the Horde
9% of 33 decks +7% synergy
Utility Artifacts (29)
Lightning Greaves
41% of 889 decks +15% synergy
Swiftfoot Boots
30% of 889 decks +2% synergy
Whip of Erebos
18% of 889 decks +16% synergy
Bolas's Citadel
17% of 875 decks +12% synergy
Cryptolith Fragment
17% of 889 decks +16% synergy
Ankh of Mishra
14% of 889 decks +14% synergy
Wayfarer's Bauble
14% of 889 decks +3% synergy
Bootleggers' Stash
13% of 85 decks +12% synergy
Tainted Sigil
12% of 41 decks +12% synergy
The One Ring
12% of 530 decks +3% synergy
Bontu's Monument
10% of 889 decks +8% synergy
Jet Medallion
9% of 889 decks +7% synergy
Mithril Coat
9% of 444 decks +2% synergy
Urza's Incubator
8% of 889 decks +5% synergy
Mindcrank
8% of 889 decks +6% synergy
Elbrus, the Binding Blade
7% of 889 decks +7% synergy
Herald's Horn
7% of 889 decks +1% synergy
Crawlspace
7% of 889 decks +6% synergy
Whispersilk Cloak
6% of 889 decks +3% synergy
Umbral Mantle
6% of 889 decks +5% synergy
Helm of the Host
6% of 889 decks +3% synergy
Sensei's Divining Top
6% of 889 decks -0% synergy
Ruby Medallion
6% of 889 decks +4% synergy
Thousand-Year Elixir
6% of 889 decks +3% synergy
Quicksilver Amulet
5% of 889 decks +5% synergy
Conduit of Worlds
5% of 56 decks +2% synergy
Staff of Domination
5% of 889 decks +3% synergy
Horizon Stone
5% of 854 decks +5% synergy
Sword of the Paruns
5% of 889 decks +5% synergy
Enchantments (50)
Dictate of Karametra
40% of 102 decks +40% synergy
Helix Pinnacle
37% of 102 decks +37% synergy
Phyrexian Arena
37% of 889 decks +29% synergy
Mana Reflection
35% of 102 decks +34% synergy
Smothering Tithe
32% of 40 decks +21% synergy
Eladamri's Vineyard
32% of 102 decks +32% synergy
Exquisite Blood
25% of 889 decks +22% synergy
Descent into Avernus
25% of 764 decks +23% synergy
Painful Quandary
25% of 889 decks +24% synergy
Axis of Mortality
24% of 41 decks +24% synergy
Manabarbs
23% of 889 decks +22% synergy
Rhystic Study
23% of 61 decks +9% synergy
Liliana's Contract
23% of 884 decks +22% synergy
Land Tax
22% of 41 decks +19% synergy
Ghostly Prison
22% of 41 decks +17% synergy
Fiery Emancipation
21% of 858 decks +19% synergy
Cindervines
21% of 102 decks +20% synergy
Captive Audience
20% of 881 decks +19% synergy
Sulfuric Vortex
18% of 889 decks +17% synergy
Rakdos Joins Up
17% of 75 decks +16% synergy
Instill Energy
17% of 102 decks +16% synergy
Reflections of Littjara
17% of 60 decks +14% synergy
Dictate of the Twin Gods
17% of 889 decks +16% synergy
Bloodchief Ascension
16% of 889 decks +15% synergy
Black Market Connections
16% of 764 decks +10% synergy
Spiteful Visions
16% of 889 decks +15% synergy
Spellshock
15% of 889 decks +15% synergy
Near-Death Experience
15% of 41 decks +15% synergy
Underworld Dreams
14% of 889 decks +13% synergy
Court of Ambition
14% of 854 decks +13% synergy
Sylvan Library
14% of 102 decks +8% synergy
Citadel of Pain
13% of 889 decks +13% synergy
Mystic Remora
13% of 61 decks +4% synergy
City on Fire
13% of 521 decks +11% synergy
War's Toll
13% of 889 decks +13% synergy
Asceticism
13% of 102 decks +11% synergy
Theater of Horrors
13% of 881 decks +12% synergy
Polluted Bonds
13% of 889 decks +12% synergy
No Mercy
12% of 889 decks +11% synergy
Animate Dead
12% of 889 decks +7% synergy
Nature's Chosen
12% of 102 decks +12% synergy
Rites of Flourishing
12% of 102 decks +11% synergy
Necropotence
12% of 889 decks +9% synergy
Up the Beanstalk
11% of 37 decks +8% synergy
City of Solitude
11% of 102 decks +11% synergy
Black Market
11% of 889 decks +8% synergy
Sanguine Bond
10% of 889 decks +7% synergy
Omniscience
10% of 61 decks +9% synergy
Propaganda
10% of 61 decks +4% synergy
Worship
10% of 41 decks +10% synergy
Planeswalkers (8)
Tyvar, Jubilant Brawler
23% of 56 decks +22% synergy
Ob Nixilis, the Adversary
17% of 783 decks +17% synergy
Angrath, the Flame-Chained
8% of 889 decks +8% synergy
The Wanderer
8% of 40 decks +7% synergy
Chandra, Awakened Inferno
7% of 871 decks +6% synergy
Tasha, the Witch Queen
7% of 57 decks +7% synergy
Geyadrone Dihada
7% of 60 decks +6% synergy
Chandra, Torch of Defiance
6% of 889 decks +4% synergy
Utility Lands (28)
Urborg, Tomb of Yawgmoth
40% of 889 decks +30% synergy
Bojuka Bog
39% of 889 decks +23% synergy
Cabal Coffers
27% of 889 decks +21% synergy
Reliquary Tower
25% of 889 decks -4% synergy
Boseiju, Who Endures
22% of 88 decks +12% synergy
Rogue's Passage
20% of 889 decks +1% synergy
Vault of the Archangel
17% of 41 decks +15% synergy
Kessig Wolf Run
16% of 102 decks +12% synergy
Temple of the False God
15% of 889 decks +5% synergy
Hall of Heliod's Generosity
15% of 40 decks +12% synergy
Ancient Tomb
14% of 889 decks +3% synergy
Castle Locthwain
12% of 865 decks +9% synergy
Otawara, Soaring City
10% of 59 decks +2% synergy
Lair of the Hydra
10% of 92 decks +9% synergy
Leechridden Swamp
9% of 889 decks +9% synergy
Takenuma, Abandoned Mire
9% of 792 decks +3% synergy
The Black Gate
8% of 424 decks +6% synergy
Spinerock Knoll
8% of 889 decks +6% synergy
Sunhome, Fortress of the Legion
7% of 41 decks +6% synergy
Shizo, Death's Storehouse
7% of 889 decks +5% synergy
Lavaclaw Reaches
7% of 889 decks +6% synergy
Nykthos, Shrine to Nyx
6% of 889 decks +1% synergy
Restless Vents
6% of 242 decks +5% synergy
Maze of Ith
6% of 889 decks +3% synergy
Westvale Abbey
6% of 889 decks +4% synergy
Mortuary Mire
6% of 889 decks +3% synergy
Barren Moor
6% of 889 decks +4% synergy
Command Beacon
6% of 889 decks +1% synergy
Mana Artifacts (32)
Sol Ring
91% of 889 decks +7% synergy
Arcane Signet
79% of 865 decks +8% synergy
Rakdos Signet
62% of 889 decks +55% synergy
Talisman of Indulgence
50% of 889 decks +44% synergy
Talisman of Dominance
49% of 61 decks +41% synergy
Talisman of Creativity
48% of 61 decks +41% synergy
Izzet Signet
34% of 61 decks +28% synergy
Dimir Signet
33% of 61 decks +25% synergy
Orzhov Signet
32% of 41 decks +25% synergy
Boros Signet
29% of 41 decks +24% synergy
Fellwar Stone
28% of 889 decks +7% synergy
Relic of Sauron
25% of 32 decks +23% synergy
Golgari Signet
23% of 102 decks +20% synergy
Talisman of Hierarchy
22% of 40 decks +17% synergy
Commander's Sphere
22% of 889 decks +6% synergy
Gruul Signet
21% of 102 decks +18% synergy
Mind Stone
19% of 889 decks +1% synergy
Thought Vessel
13% of 889 decks -3% synergy
Talisman of Conviction
12% of 40 decks +8% synergy
Mana Crypt
12% of 889 decks +1% synergy
Thran Dynamo
12% of 889 decks +7% synergy
Chromatic Lantern
10% of 889 decks +0% synergy
Gilded Lotus
9% of 889 decks +6% synergy
Charcoal Diamond
9% of 889 decks +6% synergy
Fire Diamond
9% of 889 decks +6% synergy
Rakdos Locket
8% of 881 decks +7% synergy
Talisman of Resilience
6% of 102 decks +4% synergy
Jeweled Lotus
6% of 854 decks -2% synergy
Worn Powerstone
6% of 889 decks +3% synergy
Rakdos Cluestone
6% of 889 decks +5% synergy
Staff of Compleation
5% of 573 decks +4% synergy
Mana Vault
5% of 889 decks -1% synergy
Lands (50)
Command Tower
87% of 889 decks +14% synergy
Dragonskull Summit
67% of 889 decks +60% synergy
Blood Crypt
65% of 889 decks +56% synergy
Ziatora's Proving Ground
65% of 85 decks +61% synergy
Smoldering Marsh
59% of 889 decks +51% synergy
Stomping Ground
58% of 102 decks +49% synergy
Overgrown Tomb
58% of 102 decks +49% synergy
Godless Shrine
56% of 41 decks +47% synergy
Luxury Suite
55% of 889 decks +49% synergy
Steam Vents
49% of 61 decks +40% synergy
Sacred Foundry
49% of 41 decks +41% synergy
Isolated Chapel
49% of 41 decks +43% synergy
Spire Garden
48% of 102 decks +43% synergy
Crumbling Necropolis
46% of 61 decks +42% synergy
Watery Grave
46% of 61 decks +35% synergy
Rootbound Crag
45% of 102 decks +40% synergy
Xander's Lounge
44% of 59 decks +41% synergy
Nomad Outpost
44% of 41 decks +41% synergy
Savai Triome
44% of 39 decks +40% synergy
Undergrowth Stadium
43% of 100 decks +37% synergy
Raugrin Triome
43% of 7 decks +40% synergy
Zagoth Triome
43% of 7 decks +39% synergy
Ketria Triome
43% of 7 decks +39% synergy
Temple Garden
43% of 14 decks +34% synergy
Hallowed Fountain
43% of 7 decks +34% synergy
Sunken Hollow
43% of 61 decks +34% synergy
Woodland Cemetery
41% of 102 decks +36% synergy
Foreboding Ruins
40% of 889 decks +37% synergy
Haunted Ridge
40% of 810 decks +36% synergy
Training Center
39% of 61 decks +33% synergy
Raucous Theater
39% of 157 decks +36% synergy
Bloodstained Mire
39% of 889 decks +28% synergy
Rakdos Carnarium
38% of 889 decks +35% synergy
Spectator Seating
38% of 37 decks +32% synergy
Vault of Champions
38% of 37 decks +32% synergy
Morphic Pool
38% of 61 decks +31% synergy
Sulfurous Springs
37% of 889 decks +33% synergy
Clifftop Retreat
37% of 41 decks +31% synergy
Savage Lands
36% of 102 decks +34% synergy
Graven Cairns
36% of 889 decks +34% synergy
Caves of Koilos
34% of 41 decks +28% synergy
Rockfall Vale
34% of 89 decks +29% synergy
Temple of Malice
32% of 889 decks +29% synergy
Mount Doom
32% of 528 decks +30% synergy
Cinder Glade
30% of 102 decks +22% synergy
Battlefield Forge
29% of 41 decks +24% synergy
Blightstep Pathway
29% of 845 decks +26% synergy
Murmuring Bosk
29% of 14 decks +28% synergy
Horizon Canopy
29% of 14 decks +28% synergy
Tainted Peak
29% of 889 decks +26% synergy