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
2.91% of 8114 decks 236 decks
Mogis, God of Slaughter
2.76% of 3981 decks 110 decks
The Lord of Pain
3.38% of 2868 decks 97 decks
Rowan, Scion of War
0.98% of 9801 decks 96 decks
Valgavoth, Harrower of Souls
0.69% of 13085 decks 90 decks
Yurlok of Scorch Thrash
0.89% of 7375 decks 66 decks
Rakdos, the Showstopper
5.15% of 1224 decks 63 decks
Rakdos, Patron of Chaos
5.41% of 906 decks 49 decks
Xantcha, Sleeper Agent
1.27% of 3625 decks 46 decks
Kaervek the Merciless
2.81% of 1424 decks 40 decks
Be'lakor, the Dark Master
0.28% of 11936 decks 34 decks
Kardur, Doomscourge
0.39% of 5390 decks 21 decks
Kaalia of the Vast
0.06% of 25036 decks 16 decks
Rakdos the Defiler
5.98% of 251 decks 15 decks
The Infamous Cruelclaw
0.25% of 6020 decks 15 decks
Raphael, Fiendish Savior
0.27% of 4423 decks 12 decks
Abaddon the Despoiler
0.14% of 5159 decks 7 decks
Prosper, Tome-Bound
0.05% of 13118 decks 7 decks
New Cards
Mistrise Village
14% of 7 decks +9% synergy
All-Out Assault
12% of 8 decks +6% synergy
Redoubled Stormsinger
2% of 88 decks +0% synergy
Afterlife from the Loam
1% of 87 decks -0% synergy
High Synergy Cards
Overabundance
54% of 97 decks +53% synergy
Wound Reflection
53% of 1181 decks +51% synergy
Heartbeat of Spring
47% of 97 decks +47% synergy
Zhur-Taa Ancient
44% of 97 decks +43% synergy
Belbe, Corrupted Observer
41% of 97 decks +41% synergy
Heartless Hidetsugu
42% of 1181 decks +40% synergy
Leyline of Abundance
41% of 97 decks +40% synergy
Rakdos Charm
54% of 1181 decks +39% synergy
Bloodletter of Aclazotz
42% of 981 decks +38% synergy
Magus of the Vineyard
38% of 97 decks +38% synergy
Top Cards
Blasphemous Act
56% of 1181 decks +23% synergy
Chaos Warp
50% of 1181 decks +19% synergy
Ignoble Hierarch
49% of 97 decks +24% synergy
Swords to Plowshares
49% of 47 decks -14% synergy
Assassin's Trophy
48% of 97 decks +18% synergy
Lightning Greaves
45% of 1181 decks +20% synergy
Bedevil
45% of 1181 decks +31% synergy
Dark Ritual
43% of 1181 decks +20% synergy
Beast Within
42% of 97 decks +5% synergy
Cultivate
41% of 97 decks -4% synergy
Game Changers
Smothering Tithe
40% of 47 decks +17% synergy
Demonic Tutor
31% of 1181 decks +10% synergy
Rhystic Study
30% of 71 decks +3% synergy
Jeska's Will
25% of 1181 decks +8% synergy
Vampiric Tutor
20% of 1181 decks +3% synergy
Bolas's Citadel
16% of 1181 decks +8% synergy
Drannith Magistrate
15% of 47 decks +9% synergy
Trouble in Pairs
11% of 35 decks +7% synergy
Vorinclex, Voice of Hunger
9% of 97 decks +7% synergy
Tergrid, God of Fright
6% of 1181 decks +4% synergy
Creatures
Gisela, Blade of Goldnight
36% of 47 decks +30% synergy
Nyxbloom Ancient
35% of 97 decks +31% synergy
Birds of Paradise
35% of 97 decks +8% synergy
Kardur, Doomscourge
33% of 1181 decks +26% synergy
Kaervek the Merciless
32% of 1181 decks +30% synergy
Sower of Discord
30% of 1181 decks +29% synergy
Solphim, Mayhem Dominus
30% of 1181 decks +26% synergy
Aurelia, the Warleader
30% of 47 decks +23% synergy
Razorkin Needlehead
29% of 573 decks +25% synergy
Zhur-Taa Druid
29% of 97 decks +27% synergy
Magus of the Candelabra
28% of 97 decks +27% synergy
Stormfist Crusader
28% of 1181 decks +24% synergy
Master of Cruelties
27% of 1181 decks +24% synergy
Seedborn Muse
27% of 97 decks +19% synergy
Mogis, God of Slaughter
27% of 1181 decks +24% synergy
Archfiend of Depravity
26% of 1181 decks +24% synergy
Bloom Tender
26% of 97 decks +18% synergy
Avacyn, Angel of Hope
26% of 47 decks +22% synergy
Lord of Change
25% of 71 decks +25% synergy
The Lord of Pain
25% of 546 decks +21% synergy
Rune-Scarred Demon
25% of 1181 decks +22% synergy
Vilis, Broker of Blood
24% of 1181 decks +21% synergy
Rakdos, Patron of Chaos
24% of 935 decks +21% synergy
Exalted Flamer of Tzeentch
24% of 71 decks +21% synergy
Rakdos, Lord of Riots
22% of 1181 decks +20% synergy
Valgavoth, Harrower of Souls
22% of 573 decks +20% synergy
Lord Xander, the Collector
21% of 71 decks +19% synergy
Solemn Simulacrum
21% of 1181 decks +7% synergy
Sheoldred, the Apocalypse
20% of 1181 decks +15% synergy
Herald of Slaanesh
19% of 1181 decks +18% synergy
Indulgent Tormentor
19% of 1181 decks +18% synergy
Linvala, Keeper of Silence
19% of 47 decks +17% synergy
Drana and Linvala
19% of 47 decks +14% synergy
Esper Sentinel
19% of 47 decks -1% synergy
Seeker of Skybreak
19% of 97 decks +17% synergy
Klothys, God of Destiny
19% of 97 decks +17% synergy
Gleeful Arsonist
18% of 546 decks +17% synergy
Spark Double
18% of 71 decks +12% synergy
Harvester of Souls
18% of 1181 decks +16% synergy
Ob Nixilis, Unshackled
18% of 1181 decks +17% synergy
Kederekt Parasite
18% of 1181 decks +16% synergy
Zo-Zu the Punisher
18% of 1181 decks +17% synergy
Rakdos, the Showstopper
18% of 1181 decks +16% synergy
Neheb, the Eternal
18% of 1181 decks +15% synergy
Sakura-Tribe Elder
18% of 97 decks -0% synergy
Eternal Witness
18% of 97 decks -2% synergy
Bloodgift Demon
17% of 1181 decks +16% synergy
Serra's Emissary
17% of 47 decks +15% synergy
Kambal, Consul of Allocation
17% of 47 decks +12% synergy
Rampaging Ferocidon
17% of 1181 decks +15% synergy
Instants
Counterspell
39% of 71 decks -3% synergy
Terminate
39% of 1181 decks +19% synergy
Path to Exile
38% of 47 decks -8% synergy
Heroic Intervention
30% of 97 decks +0% synergy
Anguished Unmaking
28% of 47 decks +3% synergy
Teferi's Protection
26% of 47 decks +6% synergy
Cyclonic Rift
25% of 71 decks -1% synergy
Deflecting Swat
25% of 1181 decks +9% synergy
Withering Torment
24% of 553 decks +17% synergy
Blood for the Blood God!
21% of 1181 decks +18% synergy
Crackling Doom
21% of 47 decks +14% synergy
Brainstorm
20% of 71 decks -0% synergy
Deadly Rollick
20% of 1181 decks +8% synergy
Infernal Grasp
16% of 1181 decks +9% synergy
Lightning Bolt
15% of 1181 decks +4% synergy
Enlightened Tutor
15% of 47 decks -2% synergy
Boros Charm
15% of 47 decks -10% synergy
Tibalt's Trickery
15% of 1181 decks +10% synergy
Mana Drain
14% of 71 decks -1% synergy
Fierce Guardianship
14% of 71 decks -4% synergy
Malakir Rebirth
12% of 1181 decks +4% synergy
Revitalizing Repast
12% of 51 decks +3% synergy
Untimely Malfunction
12% of 565 decks +4% synergy
Krosan Grip
11% of 97 decks +5% synergy
An Offer You Can't Refuse
11% of 71 decks -10% synergy
Negate
11% of 71 decks -11% synergy
Bolt Bend
11% of 1181 decks +7% synergy
Angel's Grace
11% of 47 decks +9% synergy
Utter End
11% of 47 decks +4% synergy
Mortify
11% of 47 decks -1% synergy
Worldly Tutor
10% of 97 decks -3% synergy
Putrefy
10% of 97 decks -5% synergy
Dig Through Time
10% of 71 decks +5% synergy
Ghostly Flicker
10% of 71 decks +5% synergy
Frantic Search
10% of 71 decks -3% synergy
Swan Song
10% of 71 decks -7% synergy
Fell the Profane
10% of 704 decks +1% synergy
Valakut Awakening
9% of 1181 decks +3% synergy
Price of Progress
9% of 1181 decks +7% synergy
Seething Song
9% of 1181 decks +3% synergy
Return to Dust
9% of 47 decks +5% synergy
Silence
9% of 47 decks +2% synergy
Despark
9% of 47 decks -7% synergy
Force of Will
8% of 71 decks -2% synergy
Suspended Sentence
8% of 546 decks +7% synergy
Fire Covenant
8% of 1181 decks +5% synergy
Kolaghan's Command
8% of 1181 decks +6% synergy
Abrade
8% of 1181 decks -4% synergy
Thrill of Possibility
8% of 1181 decks -2% synergy
Imp's Mischief
7% of 1181 decks +4% synergy
Sorceries
Farseek
37% of 97 decks +3% synergy
Rite of Replication
35% of 71 decks +32% synergy
Feed the Swarm
35% of 1181 decks +17% synergy
Vandalblast
34% of 1181 decks +18% synergy
Exsanguinate
28% of 1181 decks +22% synergy
Nature's Lore
28% of 97 decks -4% synergy
Toxic Deluge
28% of 1181 decks +10% synergy
Torment of Hailfire
27% of 1181 decks +23% synergy
Three Visits
27% of 97 decks +2% synergy
Sign in Blood
25% of 1181 decks +16% synergy
Rampant Growth
24% of 97 decks -11% synergy
Kodama's Reach
23% of 97 decks -8% synergy
Damnation
20% of 1181 decks +13% synergy
Lavalanche
20% of 97 decks +17% synergy
Dreadbore
20% of 1181 decks +17% synergy
Reanimate
19% of 1181 decks +2% synergy
Night's Whisper
18% of 1181 decks +9% synergy
Read the Bones
17% of 1181 decks +10% synergy
Ruinous Ultimatum
17% of 47 decks -1% synergy
Faithless Looting
13% of 1181 decks -3% synergy
Wrath of God
13% of 47 decks +7% synergy
Damn
13% of 47 decks -3% synergy
Grab the Prize
13% of 559 decks +10% synergy
Collective Voyage
12% of 97 decks +12% synergy
Bala Ged Recovery
12% of 97 decks +4% synergy
Skyshroud Claim
12% of 97 decks +4% synergy
Demonic Counsel
12% of 573 decks +10% synergy
Bloodsoaked Insight
12% of 704 decks +9% synergy
Diabolic Tutor
12% of 1181 decks +6% synergy
Fraying Omnipotence
12% of 1181 decks +11% synergy
Treasure Cruise
11% of 71 decks +6% synergy
Windfall
11% of 71 decks -1% synergy
Blasphemous Edict
11% of 404 decks +3% synergy
Revival // Revenge
11% of 47 decks +9% synergy
Merciless Eviction
11% of 47 decks +7% synergy
Farewell
11% of 47 decks -2% synergy
Grim Tutor
10% of 1181 decks +6% synergy
Last One Standing
10% of 1181 decks +9% synergy
Harmonize
10% of 97 decks +2% synergy
Peer into the Abyss
10% of 1181 decks +7% synergy
Wheel of Misfortune
10% of 1181 decks +6% synergy
Disrupt Decorum
9% of 1181 decks +6% synergy
Sadistic Shell Game
9% of 546 decks +8% synergy
Genesis Wave
9% of 97 decks +7% synergy
Chandra's Ignition
9% of 1181 decks +4% synergy
Mana Geyser
9% of 1181 decks +2% synergy
Debt to the Deathless
9% of 47 decks +5% synergy
Vindicate
9% of 47 decks +3% synergy
Rakdos's Return
8% of 1181 decks +8% synergy
Tempt with Discovery
8% of 97 decks +4% synergy
Utility Artifacts
Swiftfoot Boots
30% of 1181 decks +3% synergy
Mind Stone
22% of 1181 decks +6% synergy
Commander's Sphere
19% of 1181 decks +5% synergy
Whip of Erebos
19% of 1181 decks +15% synergy
Cryptolith Fragment
15% of 1181 decks +15% synergy
Ankh of Mishra
14% of 1181 decks +13% synergy
Wayfarer's Bauble
12% of 1181 decks +3% synergy
Basilisk Collar
12% of 1181 decks +8% synergy
Jet Medallion
12% of 1181 decks +9% synergy
Ruby Medallion
10% of 1181 decks +7% synergy
Bootleggers' Stash
9% of 97 decks +7% synergy
Bontu's Monument
9% of 1181 decks +7% synergy
Urza's Incubator
8% of 1181 decks +4% synergy
Mindcrank
8% of 1181 decks +6% synergy
Mithril Coat
7% of 1139 decks +3% synergy
The One Ring
7% of 1181 decks -1% synergy
Shadowspear
7% of 1181 decks +4% synergy
Herald's Horn
7% of 1181 decks +1% synergy
Rakdos Locket
7% of 1181 decks +6% synergy
Crawlspace
7% of 1181 decks +6% synergy
Mask of Griselbrand
7% of 1181 decks +5% synergy
Tainted Sigil
6% of 47 decks +6% synergy
Whispersilk Cloak
6% of 1181 decks +2% synergy
Helm of the Host
6% of 1181 decks +2% synergy
Rakdos Cluestone
5% of 1181 decks +5% synergy
Elbrus, the Binding Blade
5% of 1181 decks +5% synergy
Enchantments
Dictate of Karametra
37% of 97 decks +36% synergy
Phyrexian Arena
37% of 1181 decks +21% synergy
Eladamri's Vineyard
34% of 97 decks +34% synergy
Mana Reflection
31% of 97 decks +29% synergy
Helix Pinnacle
30% of 97 decks +29% synergy
Painful Quandary
29% of 1181 decks +27% synergy
Exquisite Blood
27% of 1181 decks +22% synergy
Descent into Avernus
27% of 1181 decks +23% synergy
Manabarbs
23% of 1181 decks +22% synergy
Ghostly Prison
23% of 47 decks +12% synergy
Reflections of Littjara
23% of 71 decks +18% synergy
Fiery Emancipation
21% of 1181 decks +18% synergy
Sulfuric Vortex
20% of 1181 decks +19% synergy
Liliana's Contract
18% of 1181 decks +17% synergy
Black Market Connections
18% of 1181 decks +6% synergy
Cindervines
18% of 97 decks +16% synergy
Spiteful Visions
17% of 1181 decks +14% synergy
Instill Energy
16% of 97 decks +16% synergy
Underworld Dreams
16% of 1181 decks +14% synergy
Bloodchief Ascension
16% of 1181 decks +13% synergy
Captive Audience
16% of 1181 decks +15% synergy
Dictate of the Twin Gods
16% of 1181 decks +14% synergy
Mystic Remora
15% of 71 decks -2% synergy
Asceticism
15% of 97 decks +13% synergy
Roiling Vortex
15% of 1181 decks +13% synergy
Blind Obedience
15% of 47 decks +8% synergy
Grievous Wound
15% of 569 decks +13% synergy
Spellshock
15% of 1181 decks +14% synergy
No Mercy
14% of 1181 decks +12% synergy
Propaganda
14% of 71 decks +2% synergy
Rites of Flourishing
13% of 97 decks +11% synergy
Polluted Bonds
13% of 1181 decks +12% synergy
City on Fire
13% of 1181 decks +8% synergy
Theater of Horrors
12% of 1181 decks +10% synergy
Spiked Corridor // Torture Pit
12% of 546 decks +11% synergy
Sanguine Bond
11% of 1181 decks +5% synergy
Axis of Mortality
11% of 47 decks +10% synergy
Land Tax
11% of 47 decks +4% synergy
Citadel of Pain
10% of 1181 decks +10% synergy
Primal Order
10% of 97 decks +10% synergy
Necropotence
10% of 1181 decks +5% synergy
Omniscience
10% of 71 decks +7% synergy
Court of Ambition
10% of 1181 decks +8% synergy
Animate Dead
9% of 1181 decks +0% synergy
City of Solitude
9% of 97 decks +9% synergy
Nature's Chosen
9% of 97 decks +9% synergy
Furnace of Rath
9% of 1181 decks +8% synergy
Black Market
9% of 1181 decks +4% synergy
Rule of Law
9% of 47 decks +7% synergy
Sphere of Safety
9% of 47 decks +4% synergy
Planeswalkers
Tyvar, Jubilant Brawler
13% of 97 decks +9% synergy
Ob Nixilis, the Adversary
12% of 1181 decks +11% synergy
Chandra, Awakened Inferno
9% of 1181 decks +7% synergy
Geyadrone Dihada
7% of 71 decks +5% synergy
Chandra, Torch of Defiance
6% of 1181 decks +3% synergy
Angrath, the Flame-Chained
5% of 1181 decks +5% synergy
Utility Lands
Bojuka Bog
36% of 1181 decks +6% synergy
Urborg, Tomb of Yawgmoth
35% of 1181 decks +26% synergy
Reliquary Tower
26% of 1181 decks -4% synergy
Cabal Coffers
25% of 1181 decks +15% synergy
Rogue's Passage
19% of 1181 decks -1% synergy
Vault of the Archangel
17% of 47 decks +6% synergy
Otawara, Soaring City
15% of 71 decks -1% synergy
Boseiju, Who Endures
15% of 97 decks -3% synergy
Kessig Wolf Run
14% of 97 decks -1% synergy
Temple of the False God
14% of 1181 decks +4% synergy
Ancient Tomb
13% of 1181 decks +3% synergy
Leechridden Swamp
13% of 1181 decks +11% synergy
Castle Locthwain
11% of 1181 decks +7% synergy
Hall of Heliod's Generosity
11% of 47 decks +4% synergy
Witch's Clinic
10% of 1181 decks +9% synergy
Spinerock Knoll
10% of 1181 decks +5% synergy
Shivan Gorge
9% of 1181 decks +8% synergy
Arena of Glory
8% of 696 decks +2% synergy
Lair of the Hydra
7% of 97 decks +6% synergy
Restless Fortress
7% of 44 decks +4% synergy
Shizo, Death's Storehouse
7% of 1181 decks +2% synergy
Maze of Ith
7% of 1181 decks +4% synergy
Takenuma, Abandoned Mire
6% of 1181 decks -3% synergy
Lavaclaw Reaches
6% of 1181 decks +5% synergy
Command Beacon
6% of 1181 decks +1% synergy
Mortuary Mire
5% of 1181 decks +1% synergy
Nykthos, Shrine to Nyx
5% of 1181 decks -0% synergy
Mana Artifacts
Sol Ring
90% of 1181 decks +6% synergy
Arcane Signet
79% of 1181 decks +7% synergy
Rakdos Signet
61% of 1181 decks +32% synergy
Talisman of Indulgence
53% of 1181 decks +26% synergy
Talisman of Dominance
51% of 71 decks +19% synergy
Talisman of Creativity
46% of 71 decks +18% synergy
Orzhov Signet
45% of 47 decks +18% synergy
Boros Signet
34% of 47 decks +12% synergy
Fellwar Stone
30% of 1181 decks +9% synergy
Izzet Signet
28% of 71 decks +1% synergy
Talisman of Hierarchy
26% of 47 decks +0% synergy
Dimir Signet
25% of 71 decks -3% synergy
Talisman of Conviction
23% of 47 decks -0% synergy
Relic of Sauron
19% of 68 decks +11% synergy
Thought Vessel
18% of 1181 decks +1% synergy
Golgari Signet
18% of 97 decks +5% synergy
Gruul Signet
16% of 97 decks +5% synergy
Thran Dynamo
11% of 1181 decks +6% synergy
Charcoal Diamond
9% of 1181 decks +4% synergy
Fire Diamond
9% of 1181 decks +4% synergy
Gilded Lotus
9% of 1181 decks +6% synergy
Chromatic Lantern
9% of 1181 decks -1% synergy
Séance Board
7% of 546 decks +7% synergy
Mana Crypt
7% of 1181 decks +1% synergy
Talisman of Resilience
6% of 97 decks -6% synergy
Worn Powerstone
6% of 1181 decks +3% synergy
Obelisk of Grixis
6% of 71 decks +5% synergy
Cursed Mirror
5% of 1181 decks -0% synergy
Talisman of Impulse
5% of 97 decks -5% synergy
Lands
Command Tower
85% of 1181 decks +11% synergy
Dragonskull Summit
65% of 1181 decks +33% synergy
Blood Crypt
61% of 1181 decks +23% synergy
Smoldering Marsh
57% of 1181 decks +24% synergy
Overgrown Tomb
57% of 97 decks +15% synergy
Godless Shrine
55% of 47 decks +15% synergy
Stomping Ground
55% of 97 decks +14% synergy
Temple Garden
55% of 11 decks +15% synergy
Ziatora's Proving Ground
52% of 97 decks +22% synergy
Luxury Suite
51% of 1181 decks +25% synergy
Crumbling Necropolis
51% of 71 decks +20% synergy
Hallowed Fountain
50% of 6 decks +10% synergy
Watery Grave
46% of 71 decks +6% synergy
Undergrowth Stadium
45% of 97 decks +20% synergy
Steam Vents
45% of 71 decks +7% synergy
Isolated Chapel
45% of 47 decks +15% synergy
Sacred Foundry
45% of 47 decks +9% synergy
Spire Garden
42% of 97 decks +18% synergy
Sulfurous Springs
42% of 1181 decks +21% synergy
Foreboding Ruins
41% of 1181 decks +25% synergy
Xander's Lounge
39% of 71 decks +14% synergy
Rootbound Crag
39% of 97 decks +14% synergy
Bloodstained Mire
39% of 1181 decks +28% synergy
Savai Triome
38% of 47 decks +12% synergy
Clifftop Retreat
38% of 47 decks +8% synergy
Woodland Cemetery
38% of 97 decks +8% synergy
Haunted Ridge
37% of 1181 decks +21% synergy
Graven Cairns
37% of 1181 decks +29% synergy
Morphic Pool
37% of 71 decks +11% synergy
Nomad Outpost
36% of 47 decks +7% synergy
Training Center
35% of 71 decks +9% synergy
Rakdos Carnarium
35% of 1181 decks +21% synergy
Savage Lands
35% of 97 decks +12% synergy
Caves of Koilos
34% of 47 decks +5% synergy
Sunken Hollow
32% of 71 decks -2% synergy
Tainted Peak
31% of 1181 decks +21% synergy
Temple of Malice
31% of 1181 decks +17% synergy
Blazemire Verge
30% of 569 decks +19% synergy
Battlefield Forge
30% of 47 decks +4% synergy
Rockfall Vale
29% of 97 decks +7% synergy
Cinder Glade
29% of 97 decks -10% synergy
Sunbillow Verge
29% of 14 decks +22% synergy
Bleachbone Verge
29% of 14 decks +21% synergy
Vault of Champions
28% of 47 decks +2% synergy
Blightstep Pathway
27% of 1181 decks +18% synergy
Indatha Triome
27% of 11 decks -3% synergy
Sulfur Falls
27% of 71 decks -6% synergy
Exotic Orchard
26% of 1181 decks -10% synergy
Drowned Catacomb
25% of 71 decks -2% synergy
Shadowblood Ridge
25% of 1181 decks +12% synergy