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
6.62% of 604 decks 40 decks
Rakdos, the Showstopper
4.24% of 1273 decks 54 decks
Kaervek the Merciless
3.29% of 1278 decks 42 decks
Mogis, God of Slaughter
3.23% of 3531 decks 114 decks
Rakdos, Lord of Riots
2.93% of 6987 decks 205 decks
Xantcha, Sleeper Agent
1.74% of 2810 decks 49 decks
Yurlok of Scorch Thrash
1.18% of 5740 decks 68 decks
Rowan, Scion of War
1.09% of 7448 decks 81 decks
Be'lakor, the Dark Master
0.31% of 10895 decks 34 decks
New Cards
Sunspine Lynx
61% of 28 decks +59% synergy
Agate-Blade Assassin
38% of 8 decks +35% synergy
Rottenmouth Viper
20% of 15 decks +17% synergy
Screaming Nemesis
11% of 35 decks +11% synergy
Iridescent Vinelasher
11% of 28 decks +8% synergy
High Synergy Cards
Bloodletter of Aclazotz
58% of 384 decks +55% synergy
Ignoble Hierarch
53% of 92 decks +51% synergy
Overabundance
50% of 101 decks +50% synergy
Wound Reflection
50% of 911 decks +49% synergy
Rakdos Charm
52% of 911 decks +49% synergy
Belbe, Corrupted Observer
46% of 99 decks +46% synergy
Rakdos, Patron of Chaos
45% of 265 decks +44% synergy
Heartbeat of Spring
45% of 101 decks +44% synergy
Leyline of Abundance
45% of 101 decks +44% synergy
Gisela, Blade of Goldnight
45% of 40 decks +44% synergy
Top Cards
Blasphemous Act
53% of 911 decks +37% synergy
Swords to Plowshares
50% of 40 decks +21% synergy
Chaos Warp
50% of 911 decks +34% synergy
Bedevil
45% of 903 decks +42% synergy
Assassin's Trophy
45% of 101 decks +38% synergy
Zhur-Taa Ancient
44% of 101 decks +43% synergy
Terminate
43% of 911 decks +38% synergy
Beast Within
41% of 101 decks +22% synergy
Lightning Greaves
40% of 911 decks +15% synergy
Dark Ritual
39% of 911 decks +28% synergy
Creatures
Heartless Hidetsugu
39% of 911 decks +38% synergy
Magus of the Vineyard
38% of 101 decks +37% synergy
Birds of Paradise
38% of 101 decks +25% synergy
Alexios, Deimos of Kosmos
36% of 45 decks +32% synergy
Nyxbloom Ancient
35% of 101 decks +33% synergy
Master of Cruelties
33% of 911 decks +33% synergy
Seedborn Muse
33% of 101 decks +29% synergy
Kardur, Doomscourge
32% of 869 decks +31% synergy
Archfiend of Depravity
31% of 911 decks +30% synergy
Sower of Discord
31% of 905 decks +30% synergy
Solphim, Mayhem Dominus
30% of 634 decks +28% synergy
Lord of Change
30% of 63 decks +30% synergy
Vilis, Broker of Blood
30% of 893 decks +28% synergy
Rune-Scarred Demon
30% of 911 decks +28% synergy
Zhur-Taa Druid
30% of 101 decks +29% synergy
Aurelia, the Warleader
28% of 40 decks +26% synergy
Esper Sentinel
27% of 33 decks +18% synergy
Drana and Linvala
26% of 19 decks +25% synergy
Herald of Slaanesh
26% of 740 decks +26% synergy
Stormfist Crusader
26% of 888 decks +25% synergy
Bloom Tender
26% of 101 decks +22% synergy
Exalted Flamer of Tzeentch
25% of 63 decks +24% synergy
Kaervek the Merciless
25% of 911 decks +25% synergy
Yasharn, Implacable Earth
25% of 12 decks +24% synergy
Ob Nixilis, Unshackled
24% of 911 decks +23% synergy
Ruric Thar, the Unbowed
24% of 101 decks +23% synergy
Magus of the Candelabra
24% of 101 decks +23% synergy
Indulgent Tormentor
23% of 911 decks +23% synergy
Solemn Simulacrum
23% of 911 decks +9% synergy
Linvala, Keeper of Silence
22% of 40 decks +21% synergy
Bloodgift Demon
22% of 911 decks +22% synergy
Bloodthirster
22% of 740 decks +21% synergy
Lord Xander, the Collector
22% of 68 decks +22% synergy
Liesa, Forgotten Archangel
22% of 32 decks +21% synergy
Klothys, God of Destiny
22% of 101 decks +21% synergy
Harvester of Souls
22% of 911 decks +20% synergy
Rakdos, the Showstopper
21% of 903 decks +21% synergy
Creeping Bloodsucker
21% of 663 decks +20% synergy
Orcus, Prince of Undeath
21% of 842 decks +21% synergy
Varragoth, Bloodsky Sire
20% of 869 decks +19% synergy
Kambal, Consul of Allocation
20% of 40 decks +19% synergy
Dosan the Falling Leaf
20% of 101 decks +20% synergy
Rakdos, Lord of Riots
20% of 911 decks +19% synergy
Sheoldred, the Apocalypse
19% of 777 decks +17% synergy
Neheb, the Eternal
19% of 911 decks +18% synergy
Balor
19% of 806 decks +18% synergy
Seeker of Skybreak
19% of 101 decks +18% synergy
Sire of Insanity
19% of 911 decks +18% synergy
Prince of Thralls
19% of 70 decks +18% synergy
Drannith Magistrate
18% of 38 decks +15% synergy
Instants
Counterspell
39% of 70 decks +18% synergy
Heroic Intervention
32% of 101 decks +18% synergy
Teferi's Protection
30% of 40 decks +21% synergy
Brainstorm
30% of 70 decks +19% synergy
Path to Exile
30% of 40 decks +10% synergy
Angel's Grace
25% of 40 decks +24% synergy
Anguished Unmaking
25% of 40 decks +19% synergy
Blood for the Blood God!
25% of 777 decks +24% synergy
Fell the Profane
24% of 90 decks +18% synergy
Cyclonic Rift
23% of 70 decks +9% synergy
Vampiric Tutor
23% of 911 decks +13% synergy
Deflecting Swat
22% of 884 decks +15% synergy
Deadly Rollick
18% of 884 decks +13% synergy
Crackling Doom
18% of 40 decks +17% synergy
Lightning Bolt
16% of 911 decks +11% synergy
Tibalt's Trickery
15% of 869 decks +13% synergy
Boros Charm
15% of 40 decks +9% synergy
Enlightened Tutor
15% of 40 decks +7% synergy
An Offer You Can't Refuse
13% of 68 decks +3% synergy
Swan Song
13% of 70 decks +5% synergy
Despark
13% of 39 decks +9% synergy
Legolas's Quick Reflexes
12% of 40 decks +11% synergy
Infernal Grasp
12% of 836 decks +8% synergy
Malakir Rebirth
11% of 881 decks +7% synergy
Bitter Triumph
11% of 303 decks +8% synergy
Krosan Grip
11% of 101 decks +7% synergy
Valakut Awakening
11% of 881 decks +8% synergy
Congregate
10% of 40 decks +10% synergy
Deflecting Palm
10% of 40 decks +9% synergy
Return to Dust
10% of 40 decks +8% synergy
Tyvar's Stand
10% of 60 decks +7% synergy
Silence
10% of 40 decks +7% synergy
Mana Drain
10% of 70 decks +2% synergy
Fierce Guardianship
10% of 70 decks +1% synergy
Thrill of Possibility
9% of 888 decks +4% synergy
Price of Progress
9% of 911 decks +9% synergy
Fire Covenant
9% of 911 decks +8% synergy
Putrefy
9% of 101 decks +5% synergy
Pongify
9% of 70 decks +3% synergy
Negate
9% of 70 decks -3% synergy
Abrade
8% of 911 decks +3% synergy
Comet Storm
8% of 911 decks +7% synergy
Return to Nature
8% of 101 decks +5% synergy
Worldly Tutor
8% of 101 decks +1% synergy
Seething Song
8% of 911 decks +5% synergy
Generous Gift
8% of 39 decks -4% synergy
Pyroblast
8% of 911 decks +5% synergy
Red Elemental Blast
8% of 911 decks +4% synergy
Kolaghan's Command
8% of 911 decks +7% synergy
Beacon of Immortality
8% of 40 decks +7% synergy
Sorceries
Cultivate
39% of 101 decks +17% synergy
Vandalblast
38% of 911 decks +30% synergy
Farseek
37% of 101 decks +21% synergy
Demonic Tutor
35% of 911 decks +23% synergy
Feed the Swarm
33% of 881 decks +24% synergy
Rite of Replication
30% of 70 decks +28% synergy
Torment of Hailfire
30% of 911 decks +27% synergy
Exsanguinate
29% of 911 decks +27% synergy
Sign in Blood
25% of 911 decks +20% synergy
Dreadbore
25% of 911 decks +24% synergy
Jeska's Will
24% of 878 decks +15% synergy
Nature's Lore
24% of 101 decks +9% synergy
Toxic Deluge
24% of 911 decks +15% synergy
Ruinous Ultimatum
24% of 38 decks +22% synergy
Three Visits
23% of 101 decks +11% synergy
Bloodsoaked Insight
22% of 90 decks +21% synergy
Read the Bones
21% of 911 decks +17% synergy
Damnation
20% of 911 decks +16% synergy
Kodama's Reach
20% of 101 decks +5% synergy
Rampant Growth
20% of 101 decks +4% synergy
Night's Whisper
20% of 911 decks +15% synergy
Reanimate
19% of 911 decks +11% synergy
Damn
18% of 33 decks +14% synergy
Lavalanche
18% of 101 decks +18% synergy
Wrath of God
18% of 40 decks +14% synergy
Bala Ged Recovery
17% of 100 decks +13% synergy
Farewell
16% of 31 decks +10% synergy
Quantum Misalignment
15% of 33 decks +14% synergy
Faithless Looting
15% of 911 decks +7% synergy
Insatiable Avarice
15% of 136 decks +12% synergy
Prisoner's Dilemma
14% of 178 decks +13% synergy
Last One Standing
14% of 911 decks +14% synergy
Reverse the Sands
12% of 40 decks +12% synergy
Austere Command
12% of 40 decks +7% synergy
Rush of Dread
12% of 136 decks +11% synergy
Fraying Omnipotence
12% of 906 decks +11% synergy
Grim Tutor
12% of 911 decks +9% synergy
Wheel of Misfortune
12% of 878 decks +9% synergy
Diabolic Tutor
11% of 911 decks +8% synergy
Mana Geyser
11% of 911 decks +7% synergy
Merciless Eviction
10% of 40 decks +9% synergy
Idyllic Tutor
10% of 40 decks +8% synergy
Collective Voyage
10% of 101 decks +9% synergy
Tempt with Discovery
10% of 101 decks +8% synergy
Rakdos's Return
10% of 911 decks +10% synergy
Sundering Eruption
10% of 81 decks +7% synergy
Victimize
10% of 911 decks +4% synergy
Peer into the Abyss
10% of 882 decks +8% synergy
Crackle with Power
9% of 855 decks +8% synergy
Syphon Mind
9% of 911 decks +7% synergy
Utility Artifacts
Swiftfoot Boots
30% of 911 decks +2% synergy
Whip of Erebos
18% of 911 decks +16% synergy
Cryptolith Fragment
17% of 911 decks +17% synergy
Bolas's Citadel
16% of 896 decks +11% synergy
Wayfarer's Bauble
13% of 911 decks +3% synergy
Ankh of Mishra
13% of 911 decks +13% synergy
The One Ring
12% of 598 decks +3% synergy
Bootleggers' Stash
10% of 86 decks +9% synergy
Bontu's Monument
10% of 911 decks +8% synergy
Tainted Sigil
10% of 40 decks +10% synergy
Jet Medallion
9% of 911 decks +6% synergy
Mithril Coat
8% of 513 decks +2% synergy
Urza's Incubator
8% of 911 decks +5% synergy
Mindcrank
8% of 911 decks +6% synergy
Herald's Horn
8% of 911 decks +1% synergy
Elbrus, the Binding Blade
7% of 911 decks +6% synergy
Crawlspace
6% of 911 decks +5% synergy
Helm of the Host
6% of 911 decks +3% synergy
Whispersilk Cloak
6% of 911 decks +2% synergy
Umbral Mantle
6% of 911 decks +5% synergy
Thousand-Year Elixir
6% of 911 decks +4% synergy
Ruby Medallion
6% of 911 decks +3% synergy
Sensei's Divining Top
6% of 911 decks -0% synergy
Quicksilver Amulet
5% of 911 decks +4% synergy
Sword of the Paruns
5% of 911 decks +5% synergy
Staff of Domination
5% of 911 decks +3% synergy
Enchantments
Mirari's Wake
38% of 13 decks +35% synergy
Dictate of Karametra
38% of 101 decks +37% synergy
Phyrexian Arena
36% of 911 decks +29% synergy
Helix Pinnacle
36% of 101 decks +35% synergy
Mana Reflection
35% of 101 decks +34% synergy
Smothering Tithe
33% of 39 decks +22% synergy
Eladamri's Vineyard
33% of 101 decks +33% synergy
Descent into Avernus
25% of 806 decks +23% synergy
Ghostly Prison
25% of 40 decks +20% synergy
Rhystic Study
24% of 70 decks +10% synergy
Exquisite Blood
24% of 911 decks +22% synergy
Painful Quandary
24% of 911 decks +23% synergy
Axis of Mortality
22% of 40 decks +22% synergy
Manabarbs
22% of 911 decks +21% synergy
Liliana's Contract
22% of 906 decks +21% synergy
Reflections of Littjara
22% of 69 decks +19% synergy
Cindervines
21% of 101 decks +20% synergy
Fiery Emancipation
21% of 882 decks +19% synergy
Land Tax
20% of 40 decks +17% synergy
Captive Audience
19% of 903 decks +19% synergy
Instill Energy
18% of 101 decks +17% synergy
Sulfuric Vortex
17% of 911 decks +17% synergy
Rakdos Joins Up
17% of 136 decks +16% synergy
Dictate of the Twin Gods
17% of 911 decks +16% synergy
Mystic Remora
16% of 70 decks +7% synergy
Bloodchief Ascension
16% of 911 decks +14% synergy
Spiteful Visions
15% of 911 decks +15% synergy
Black Market Connections
15% of 806 decks +9% synergy
Spellshock
14% of 911 decks +14% synergy
Court of Ambition
14% of 878 decks +13% synergy
Nature's Chosen
14% of 101 decks +14% synergy
Underworld Dreams
14% of 911 decks +12% synergy
City on Fire
13% of 589 decks +10% synergy
Asceticism
13% of 101 decks +12% synergy
Sylvan Library
13% of 101 decks +7% synergy
Animate Dead
13% of 911 decks +8% synergy
Theater of Horrors
13% of 903 decks +12% synergy
Near-Death Experience
12% of 40 decks +12% synergy
Rule of Law
12% of 40 decks +12% synergy
Citadel of Pain
12% of 911 decks +12% synergy
Polluted Bonds
12% of 911 decks +12% synergy
Rites of Flourishing
12% of 101 decks +11% synergy
War's Toll
12% of 911 decks +11% synergy
Necropotence
12% of 911 decks +9% synergy
No Mercy
12% of 911 decks +11% synergy
City of Solitude
11% of 101 decks +11% synergy
Black Market
10% of 911 decks +8% synergy
Sanguine Bond
10% of 911 decks +7% synergy
Blind Obedience
10% of 40 decks +7% synergy
Propaganda
10% of 70 decks +5% synergy
Planeswalkers
Tyvar, Jubilant Brawler
21% of 62 decks +20% synergy
Ob Nixilis, the Adversary
17% of 820 decks +16% synergy
The Wanderer
8% of 39 decks +7% synergy
Angrath, the Flame-Chained
7% of 911 decks +7% synergy
Chandra, Awakened Inferno
7% of 893 decks +6% synergy
Tasha, the Witch Queen
6% of 67 decks +6% synergy
Chandra, Torch of Defiance
6% of 911 decks +4% synergy
Geyadrone Dihada
6% of 69 decks +6% synergy
Utility Lands
Urborg, Tomb of Yawgmoth
38% of 911 decks +28% synergy
Bojuka Bog
37% of 911 decks +22% synergy
Arena of Glory
27% of 73 decks +21% synergy
Cabal Coffers
26% of 911 decks +20% synergy
Reliquary Tower
24% of 911 decks -5% synergy
Boseiju, Who Endures
21% of 87 decks +12% synergy
Rogue's Passage
20% of 911 decks +1% synergy
Vault of the Archangel
18% of 40 decks +15% synergy
Hall of Heliod's Generosity
15% of 39 decks +12% synergy
Temple of the False God
15% of 911 decks +5% synergy
Kessig Wolf Run
14% of 101 decks +10% synergy
Ancient Tomb
13% of 911 decks +2% synergy
Castle Locthwain
12% of 888 decks +9% synergy
Otawara, Soaring City
10% of 68 decks +2% synergy
Takenuma, Abandoned Mire
9% of 826 decks +3% synergy
Leechridden Swamp
8% of 911 decks +8% synergy
Lair of the Hydra
8% of 91 decks +7% synergy
Shizo, Death's Storehouse
8% of 911 decks +5% synergy
The Black Gate
8% of 493 decks +5% synergy
Spinerock Knoll
7% of 911 decks +5% synergy
Lavaclaw Reaches
7% of 911 decks +6% synergy
Maze of Ith
6% of 911 decks +4% synergy
Mortuary Mire
6% of 911 decks +3% synergy
Nykthos, Shrine to Nyx
6% of 911 decks +0% synergy
Westvale Abbey
6% of 911 decks +4% synergy
Barren Moor
6% of 911 decks +4% synergy
Command Beacon
5% of 911 decks +1% synergy
Restless Vents
5% of 311 decks +5% synergy
Mana Artifacts
Sol Ring
91% of 911 decks +6% synergy
Arcane Signet
78% of 888 decks +7% synergy
Rakdos Signet
61% of 911 decks +54% synergy
Talisman of Indulgence
49% of 911 decks +43% synergy
Talisman of Dominance
49% of 70 decks +41% synergy
Talisman of Creativity
47% of 70 decks +41% synergy
Orzhov Signet
35% of 40 decks +29% synergy
Izzet Signet
31% of 70 decks +25% synergy
Boros Signet
30% of 40 decks +25% synergy
Dimir Signet
30% of 70 decks +22% synergy
Fellwar Stone
27% of 911 decks +6% synergy
Talisman of Hierarchy
26% of 39 decks +20% synergy
Relic of Sauron
24% of 42 decks +22% synergy
Commander's Sphere
21% of 911 decks +6% synergy
Golgari Signet
20% of 101 decks +17% synergy
Mind Stone
18% of 911 decks +1% synergy
Gruul Signet
18% of 101 decks +15% synergy
Talisman of Conviction
13% of 39 decks +8% synergy
Thought Vessel
13% of 911 decks -4% synergy
Mana Crypt
12% of 911 decks +1% synergy
Thran Dynamo
12% of 911 decks +7% synergy
Chromatic Lantern
10% of 911 decks +1% synergy
Gilded Lotus
9% of 911 decks +6% synergy
Charcoal Diamond
8% of 911 decks +6% synergy
Fire Diamond
8% of 911 decks +5% synergy
Rakdos Locket
7% of 903 decks +7% synergy
Worn Powerstone
6% of 911 decks +3% synergy
Obelisk of Grixis
6% of 70 decks +6% synergy
Jeweled Lotus
6% of 878 decks -2% synergy
Rakdos Cluestone
5% of 911 decks +5% synergy
Mana Vault
5% of 911 decks -1% synergy
Lands
Command Tower
87% of 911 decks +13% synergy
Dragonskull Summit
65% of 911 decks +58% synergy
Ziatora's Proving Ground
64% of 86 decks +61% synergy
Blood Crypt
62% of 911 decks +53% synergy
Smoldering Marsh
57% of 911 decks +50% synergy
Stomping Ground
54% of 101 decks +45% synergy
Overgrown Tomb
54% of 101 decks +45% synergy
Luxury Suite
54% of 911 decks +48% synergy
Godless Shrine
52% of 40 decks +43% synergy
Crumbling Necropolis
47% of 70 decks +43% synergy
Spire Garden
46% of 101 decks +40% synergy
Isolated Chapel
45% of 40 decks +39% synergy
Sacred Foundry
45% of 40 decks +37% synergy
Savai Triome
45% of 38 decks +42% synergy
Sunken Hollow
44% of 70 decks +36% synergy
Steam Vents
44% of 70 decks +35% synergy
Undergrowth Stadium
43% of 99 decks +38% synergy
Raugrin Triome
43% of 7 decks +40% synergy
Hallowed Fountain
43% of 7 decks +34% synergy
Watery Grave
43% of 70 decks +32% synergy
Rootbound Crag
43% of 101 decks +38% synergy
Nomad Outpost
42% of 40 decks +39% synergy
Foreboding Ruins
40% of 911 decks +36% synergy
Xander's Lounge
40% of 68 decks +36% synergy
Haunted Ridge
39% of 836 decks +35% synergy
Temple Garden
38% of 13 decks +30% synergy
Bloodstained Mire
38% of 911 decks +28% synergy
Rakdos Carnarium
38% of 911 decks +35% synergy
Savage Lands
38% of 101 decks +35% synergy
Zagoth Triome
38% of 8 decks +34% synergy
Ketria Triome
38% of 8 decks +34% synergy
Sulfurous Springs
37% of 911 decks +32% synergy
Vault of Champions
36% of 36 decks +30% synergy
Training Center
36% of 70 decks +29% synergy
Woodland Cemetery
36% of 101 decks +30% synergy
Caves of Koilos
35% of 40 decks +29% synergy
Graven Cairns
35% of 911 decks +33% synergy
Morphic Pool
34% of 70 decks +28% synergy
Rockfall Vale
34% of 88 decks +29% synergy
Spectator Seating
33% of 36 decks +28% synergy
Raucous Theater
33% of 221 decks +30% synergy
Clifftop Retreat
32% of 40 decks +27% synergy
Temple of Malice
32% of 911 decks +28% synergy
Indatha Triome
31% of 13 decks +27% synergy
Battlefield Forge
30% of 40 decks +24% synergy
Mount Doom
30% of 596 decks +28% synergy
Blightstep Pathway
28% of 869 decks +26% synergy
Cinder Glade
28% of 101 decks +19% synergy
Tainted Peak
28% of 911 decks +26% synergy
Drowned Catacomb
26% of 70 decks +19% synergy