Worldfire + Oblivion Ring + Cauldron Familiar
Worldfire
Oblivion Ring
Cauldron Familiar
Requires
Worldfire must be in hand.
Oblivion Ring must be on the battlefield.
Cauldron Familiar must be in exile (exiled by Oblivion Ring).
Mana needed: 
Steps
- Cast Worldfire, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one.
- Oblivion Ring triggers, returning Cauldron Familiar from exile to the battlefield.
- Cauldron Familiar enters the battlefield, losing each opponent 1 life and you to gain 1 life.
Results
Each opponent loses the game. Exile all cards in all hands and graveyards. Exile all permanents. Near-infinite lifeloss.
Jeska, Thrice Reborn // Ravos, Soultender
1.79% of 56 decks
1 decks
Mathas, Fiend Seeker
0.07% of 1498 decks
1 decks
Ghen, Arcanum Weaver
0.04% of 2233 decks
1 decks
Jan Jansen, Chaos Crafter
0.02% of 4327 decks
1 decks
Queen Marchesa
0.02% of 11975 decks
2 decks
Dihada, Binder of Wills
0.01% of 9627 decks
1 decks
Kenrith, the Returned King
0.01% of 20869 decks
2 decks
Kaalia of the Vast
0.01% of 18969 decks
1 decks
Isshin, Two Heavens as One
0.01% of 19452 decks
1 decks
High Synergy Cards
Journey to Nowhere
64% of 11 decks
+63% synergy
Barren Glory
55% of 11 decks
+55% synergy
Teferi's Protection
64% of 11 decks
+54% synergy
Goblin Chainwhirler
55% of 11 decks
+54% synergy
Fiend Hunter
55% of 11 decks
+54% synergy
Near-Death Experience
45% of 11 decks
+45% synergy
Touch the Spirit Realm
45% of 11 decks
+45% synergy
Smothering Tithe
55% of 11 decks
+43% synergy
Diabolic Intent
45% of 11 decks
+41% synergy
Enlightened Tutor
45% of 11 decks
+37% synergy
Top Cards
Esper Sentinel
45% of 11 decks
+36% synergy
Parallax Wave
36% of 11 decks
+36% synergy
Gibbering Fiend
36% of 11 decks
+36% synergy
Voldaren Epicure
36% of 11 decks
+36% synergy
Silence
36% of 11 decks
+33% synergy
Phyrexian Arena
36% of 11 decks
+29% synergy
Jeska's Will
36% of 11 decks
+28% synergy
Dark Ritual
36% of 11 decks
+25% synergy
Path to Exile
36% of 11 decks
+16% synergy
Creatures
Leonin Relic-Warder
27% of 11 decks
+27% synergy
Fanatic of Mogis
27% of 11 decks
+27% synergy
Neheb, Dreadhorde Champion
27% of 11 decks
+27% synergy
Magus of the Wheel
27% of 11 decks
+25% synergy
Grand Abolisher
27% of 11 decks
+23% synergy
Dockside Extortionist
27% of 11 decks
+20% synergy
Instants
Vampiric Tutor
64% of 11 decks
+54% synergy
Kaervek's Spite
27% of 11 decks
+27% synergy
Pyroblast
27% of 11 decks
+24% synergy
Red Elemental Blast
27% of 11 decks
+24% synergy
Swords to Plowshares
27% of 11 decks
-1% synergy
Sorceries
Demonic Tutor
64% of 11 decks
+52% synergy
Imperial Seal
36% of 11 decks
+33% synergy
Apocalypse
27% of 11 decks
+27% synergy
Idyllic Tutor
27% of 11 decks
+25% synergy
Grim Tutor
27% of 11 decks
+25% synergy
Diabolic Tutor
27% of 11 decks
+24% synergy
Gamble
27% of 11 decks
+22% synergy
Blasphemous Act
27% of 11 decks
+11% synergy
Utility Artifacts
Mycosynth Lattice
27% of 11 decks
+26% synergy
Altar of Dementia
27% of 11 decks
+24% synergy
Enchantments
Black Market Connections
27% of 11 decks
+22% synergy
Utility Lands
Emergence Zone
36% of 11 decks
+34% synergy
Bojuka Bog
27% of 11 decks
+12% synergy
Reliquary Tower
27% of 11 decks
-2% synergy
Mana Artifacts
Sol Ring
100% of 11 decks
+15% synergy
Arcane Signet
82% of 11 decks
+10% synergy
Fellwar Stone
36% of 11 decks
+15% synergy
Thran Dynamo
27% of 11 decks
+22% synergy
Boros Signet
27% of 11 decks
+22% synergy
Orzhov Signet
27% of 11 decks
+21% synergy
Chromatic Lantern
27% of 11 decks
+18% synergy
Lands
Command Tower
73% of 11 decks
-1% synergy
Savai Triome
64% of 11 decks
+61% synergy
Sacred Foundry
64% of 11 decks
+55% synergy
Blood Crypt
64% of 11 decks
+55% synergy
Godless Shrine
55% of 11 decks
+45% synergy
Marsh Flats
45% of 11 decks
+34% synergy
Myriad Landscape
45% of 11 decks
+25% synergy
Nomad Outpost
45% of 11 decks
+42% synergy
Luxury Suite
45% of 11 decks
+39% synergy
Dragonskull Summit
45% of 11 decks
+39% synergy
Arid Mesa
36% of 11 decks
+26% synergy
Plateau
27% of 11 decks
+24% synergy
Scrubland
27% of 11 decks
+24% synergy
Badlands
27% of 11 decks
+24% synergy
Temple of Triumph
27% of 11 decks
+24% synergy
Sulfurous Springs
27% of 11 decks
+23% synergy
Battlefield Forge
27% of 11 decks
+22% synergy
Spectator Seating
27% of 11 decks
+22% synergy
Vault of Champions
27% of 11 decks
+21% synergy
Clifftop Retreat
27% of 11 decks
+21% synergy
Isolated Chapel
27% of 11 decks
+21% synergy
Smoldering Marsh
27% of 11 decks
+20% synergy
Bloodstained Mire
27% of 11 decks
+17% synergy
Evolving Wilds
27% of 11 decks
+6% synergy
Exotic Orchard
27% of 11 decks
-8% synergy