Dualcaster Mage + Black Sun's Twilight + Ashnod's Altar

Dualcaster Mage
Black Sun's Twilight
Ashnod's Altar

Requires
Dualcaster Mage must be in hand. Black Sun's Twilight must be in hand. Ashnod's Altar must be on the battlefield. Mana needed: 6
Steps
  1. Cast Black Sun's Twilight by paying 5, optionally choosing to target a creature.
  2. Holding priority, cast Dualcaster Mage by paying 1.
  3. When Dualcaster Mage enters the battlefield, it triggers, copying Black Sun's Twilight, optionally choosing to target a creature.
  4. Holding priority, activate Ashnod's Altar by sacrificing Dualcaster Mage, adding .
  5. Resolve the copy of Black Sun's Twilight, giving up to one creature -5/-5 until end of turn and returning Dualcaster Mage from your graveyard to the battlefield.
  6. Repeat from step 3.
Results
Infinite LTB. Infinite ETB. Infinite sacrifice triggers. Infinite death triggers. Infinite colorless mana. Infinite magecraft triggers. Reduce any number of target creatures' toughness to zero.

Inalla, Archmage Ritualist
1.70% of 7196 decks 122 decks
Rowan, Scion of War
0.02% of 8209 decks 2 decks
Chainer, Nightmare Adept
0.06% of 3170 decks 2 decks
The Scorpion God
0.05% of 2162 decks 1 decks
Kraum, Ludevic's Opus // Tormod, the Desecrator
0.35% of 288 decks 1 decks
Lucius the Eternal
0.18% of 545 decks 1 decks
Kroxa, Titan of Death's Hunger
0.04% of 2304 decks 1 decks
Syrix, Carrier of the Flame
0.05% of 2080 decks 1 decks
Saruman, the White Hand
0.02% of 5963 decks 1 decks
Jeska, Thrice Reborn // Tevesh Szat, Doom of Fools
0.28% of 362 decks 1 decks
Kroxa and Kunoros
0.05% of 2001 decks 1 decks
Extus, Oriq Overlord
0.02% of 5240 decks 1 decks
Vial Smasher, Gleeful Grenadier
0.37% of 269 decks 1 decks
Lagomos, Hand of Hatred
0.10% of 1034 decks 1 decks
Valki, God of Lies
0.06% of 1683 decks 1 decks
Cormela, Glamour Thief
0.05% of 2016 decks 1 decks
High Synergy Cards
Naban, Dean of Iteration
92% of 125 decks +92% synergy
Naru Meha, Master Wizard
91% of 125 decks +91% synergy
Archaeomancer
90% of 125 decks +87% synergy
Ghostly Flicker
91% of 125 decks +86% synergy
Azami, Lady of Scrolls
86% of 125 decks +86% synergy
Riptide Laboratory
87% of 125 decks +85% synergy
Bloodline Necromancer
85% of 139 decks +84% synergy
Step Through
85% of 125 decks +84% synergy
Aether Channeler
86% of 125 decks +83% synergy
Stonybrook Banneret
81% of 125 decks +79% synergy
Top Cards
Counterspell
86% of 125 decks +43% synergy
Harmonic Prodigy
82% of 139 decks +78% synergy
Wizard's Retort
80% of 125 decks +79% synergy
Ertai Resurrected
79% of 125 decks +76% synergy
Reflections of Littjara
78% of 125 decks +72% synergy
Molten Echoes
77% of 139 decks +75% synergy
Sea Gate Oracle
74% of 125 decks +74% synergy
Galecaster Colossus
74% of 125 decks +73% synergy
Venser, Shaper Savant
73% of 125 decks +71% synergy
Vedalken Aethermage
72% of 125 decks +71% synergy
Creatures
Timestream Navigator
72% of 125 decks +71% synergy
Watcher for Tomorrow
68% of 125 decks +67% synergy
Apprentice Necromancer
68% of 139 decks +67% synergy
Cloudkin Seer
67% of 125 decks +67% synergy
Cyclone Summoner
67% of 125 decks +67% synergy
Dour Port-Mage
67% of 6 decks +61% synergy
Puppeteer Clique
65% of 139 decks +64% synergy
Archmage of Echoes
65% of 26 decks +64% synergy
Tribute Mage
63% of 125 decks +61% synergy
Oracle of Tragedy
63% of 84 decks +63% synergy
Kess, Dissident Mage
62% of 125 decks +58% synergy
Aether Adept
59% of 125 decks +59% synergy
Ruthless Technomancer
58% of 139 decks +55% synergy
Obeka, Brute Chronologist
54% of 125 decks +52% synergy
Docent of Perfection
53% of 125 decks +52% synergy
Rona, Herald of Invasion
45% of 77 decks +43% synergy
Pinnacle Monk
38% of 8 decks +30% synergy
Roaming Throne
38% of 24 decks +27% synergy
Spellseeker
37% of 125 decks +33% synergy
Trophy Mage
36% of 125 decks +34% synergy
Tishana's Tidebinder
33% of 15 decks +31% synergy
The Master, Multiplied
32% of 28 decks +30% synergy
Anathemancer
30% of 139 decks +30% synergy
Arcane Proxy
27% of 125 decks +27% synergy
Viscera Seer
25% of 139 decks +16% synergy
Basalt Ravager
20% of 139 decks +20% synergy
Arcanis the Omnipotent
20% of 125 decks +19% synergy
Portal Mage
19% of 125 decks +19% synergy
Marchesa, the Black Rose
19% of 125 decks +17% synergy
Titan of Littjara
18% of 33 decks +17% synergy
Patron Wizard
18% of 125 decks +17% synergy
Wanderwine Prophets
18% of 125 decks +17% synergy
Shadowmage Infiltrator
16% of 125 decks +15% synergy
Disciple of Bolas
14% of 139 decks +12% synergy
Thassa, Deep-Dwelling
14% of 125 decks +10% synergy
Teferi, Mage of Zhalfir
13% of 125 decks +12% synergy
Havengul Lich
13% of 125 decks +11% synergy
Barrin, Tolarian Archmage
12% of 125 decks +12% synergy
Sage of Fables
12% of 125 decks +12% synergy
Vindictive Lich
12% of 139 decks +11% synergy
Scholar of the Ages
11% of 125 decks +11% synergy
Dockside Extortionist
10% of 139 decks -3% synergy
Vela the Night-Clad
10% of 125 decks +9% synergy
Thassa's Oracle
10% of 125 decks +2% synergy
Dire Fleet Ravager
9% of 139 decks +8% synergy
Merchant of Secrets
8% of 125 decks +8% synergy
Beguiler of Wills
8% of 125 decks +8% synergy
Wizards of Thay
8% of 125 decks +6% synergy
Winter Eladrin
7% of 125 decks +7% synergy
Peregrine Drake
7% of 125 decks +4% synergy
Instants
Brainstorm
69% of 125 decks +47% synergy
Flame of Anor
68% of 53 decks +63% synergy
Chaos Warp
68% of 139 decks +36% synergy
Terminate
65% of 139 decks +45% synergy
Negate
62% of 125 decks +40% synergy
Rakdos Charm
58% of 139 decks +44% synergy
Cyclonic Rift
53% of 125 decks +25% synergy
Displace
51% of 125 decks +50% synergy
Reality Shift
51% of 125 decks +42% synergy
Waterlogged Teachings
38% of 8 decks +31% synergy
Dark Ritual
35% of 139 decks +13% synergy
Mystical Tutor
34% of 125 decks +19% synergy
Fell the Profane
30% of 10 decks +18% synergy
An Offer You Can't Refuse
27% of 125 decks +7% synergy
Swan Song
23% of 125 decks +7% synergy
Crosis's Charm
22% of 125 decks +19% synergy
Essence Flux
19% of 125 decks +17% synergy
Arcane Denial
18% of 125 decks -2% synergy
Illusionist's Stratagem
15% of 125 decks +15% synergy
Burnt Offering
14% of 139 decks +12% synergy
Go for the Throat
14% of 139 decks +7% synergy
Filter Out
14% of 59 decks +11% synergy
Saw in Half
13% of 139 decks +10% synergy
Bedevil
12% of 139 decks -3% synergy
Vampiric Tutor
12% of 139 decks -7% synergy
Culling the Weak
11% of 139 decks +7% synergy
Mana Drain
10% of 125 decks -5% synergy
Dramatic Reversal
10% of 125 decks +4% synergy
Pongify
9% of 125 decks -3% synergy
Entomb
9% of 139 decks +1% synergy
Frantic Search
8% of 125 decks -4% synergy
Polymorphist's Jest
7% of 125 decks +6% synergy
Change the Equation
7% of 84 decks +7% synergy
Demonic Consultation
6% of 139 decks +3% synergy
Village Rites
6% of 139 decks -3% synergy
Snap
6% of 125 decks -0% synergy
Deadly Dispute
6% of 139 decks -5% synergy
Blur
6% of 125 decks +4% synergy
Memory Plunder
6% of 125 decks +3% synergy
Spell Pierce
6% of 125 decks +2% synergy
Sorceries
Ponder
62% of 125 decks +49% synergy
Blasphemous Act
58% of 139 decks +24% synergy
Vandalblast
55% of 139 decks +39% synergy
Unearth
48% of 139 decks +45% synergy
Reanimate
45% of 139 decks +30% synergy
Kindred Dominance
40% of 139 decks +37% synergy
Demonic Tutor
40% of 139 decks +18% synergy
Gix's Command
40% of 139 decks +39% synergy
Persist
38% of 139 decks +36% synergy
Raise the Palisade
36% of 45 decks +32% synergy
Molten Duplication
29% of 14 decks +25% synergy
Twinflame
25% of 139 decks +22% synergy
Victimize
17% of 139 decks +6% synergy
Feed the Swarm
16% of 139 decks -2% synergy
Windfall
14% of 125 decks +1% synergy
Rite of Replication
12% of 125 decks +9% synergy
Preordain
11% of 125 decks +0% synergy
Exhume
9% of 139 decks +8% synergy
Diabolic Intent
9% of 139 decks -0% synergy
Faithless Looting
9% of 139 decks -8% synergy
Finale of Promise
7% of 139 decks +6% synergy
Gamble
7% of 139 decks -3% synergy
Toxic Deluge
7% of 139 decks -10% synergy
Torment of Hailfire
6% of 139 decks +2% synergy
Heat Shimmer
6% of 139 decks +4% synergy
Decree of Pain
6% of 139 decks +3% synergy
Agadeem's Awakening
6% of 139 decks +2% synergy
Grim Tutor
6% of 139 decks +1% synergy
Diabolic Tutor
6% of 139 decks -1% synergy
Jeska's Will
6% of 139 decks -12% synergy
Mana Geyser
5% of 139 decks -2% synergy
Utility Artifacts
Panharmonicon
69% of 139 decks +65% synergy
Pyre of Heroes
27% of 139 decks +27% synergy
Herald's Horn
27% of 139 decks +21% synergy
Conjurer's Closet
26% of 139 decks +24% synergy
Sundial of the Infinite
19% of 139 decks +18% synergy
Mirror Box
14% of 139 decks +13% synergy
Crystal Shard
14% of 125 decks +13% synergy
Urza's Incubator
12% of 139 decks +8% synergy
Robe of the Archmagi
10% of 125 decks +9% synergy
Skullclamp
9% of 139 decks -4% synergy
Wayfarer's Bauble
8% of 139 decks -2% synergy
Isochron Scepter
7% of 139 decks +5% synergy
Phyrexian Altar
7% of 139 decks +3% synergy
The One Ring
6% of 95 decks -3% synergy
Wishclaw Talisman
5% of 139 decks -0% synergy
Enchantments
Rhystic Study
48% of 125 decks +20% synergy
Kindred Discovery
35% of 125 decks +28% synergy
Virtue of Knowledge
30% of 27 decks +27% synergy
Mystic Remora
26% of 125 decks +8% synergy
Impact Tremors
19% of 139 decks +9% synergy
Wizard Class
15% of 125 decks +11% synergy
Descendants' Fury
15% of 41 decks +14% synergy
Storm of Saruman
9% of 53 decks +8% synergy
Mana Echoes
8% of 139 decks +7% synergy
Flameshadow Conjuring
8% of 139 decks +6% synergy
Propaganda
7% of 125 decks -4% synergy
Goblin Bombardment
6% of 139 decks -0% synergy
Leyline of Anticipation
6% of 125 decks +2% synergy
Animate Dead
5% of 139 decks -4% synergy
Planeswalkers
Kasmina, Enigmatic Mentor
18% of 125 decks +17% synergy
Narset, Parter of Veils
6% of 125 decks +0% synergy
Utility Lands
Reliquary Tower
67% of 139 decks +37% synergy
Bojuka Bog
22% of 139 decks -9% synergy
Mystic Sanctuary
21% of 125 decks +9% synergy
Phyrexian Tower
9% of 139 decks +0% synergy
Temple of the False God
7% of 139 decks -2% synergy
Urborg, Tomb of Yawgmoth
6% of 139 decks -3% synergy
Otawara, Soaring City
6% of 125 decks -11% synergy
Mana Artifacts
Sol Ring
94% of 139 decks +9% synergy
Arcane Signet
90% of 139 decks +18% synergy
Izzet Signet
74% of 125 decks +45% synergy
Dimir Signet
72% of 125 decks +42% synergy
Fellwar Stone
59% of 139 decks +38% synergy
Talisman of Creativity
58% of 125 decks +29% synergy
Rakdos Signet
55% of 139 decks +25% synergy
Talisman of Dominance
54% of 125 decks +23% synergy
Commander's Sphere
41% of 139 decks +26% synergy
Talisman of Indulgence
21% of 139 decks -5% synergy
Thought Vessel
18% of 139 decks +1% synergy
Relic of Sauron
18% of 45 decks +6% synergy
Chromatic Lantern
9% of 139 decks -1% synergy
Mind Stone
8% of 139 decks -10% synergy
Mana Crypt
6% of 139 decks -3% synergy
Lands
Command Tower
94% of 139 decks +20% synergy
Crumbling Necropolis
81% of 125 decks +50% synergy
Path of Ancestry
75% of 139 decks +54% synergy
Exotic Orchard
73% of 139 decks +38% synergy
Sulfur Falls
68% of 125 decks +38% synergy
Drowned Catacomb
63% of 125 decks +38% synergy
Xander's Lounge
62% of 125 decks +35% synergy
Steam Vents
58% of 125 decks +18% synergy
Evolving Wilds
58% of 139 decks +37% synergy
Seething Landscape
57% of 7 decks +41% synergy
Watery Grave
57% of 125 decks +16% synergy
Blood Crypt
55% of 139 decks +16% synergy
Shivan Reef
53% of 125 decks +26% synergy
Terramorphic Expanse
50% of 139 decks +35% synergy
Sunken Hollow
48% of 125 decks +13% synergy
Training Center
45% of 125 decks +17% synergy
Izzet Boilerworks
42% of 125 decks +26% synergy
Dimir Aqueduct
39% of 125 decks +22% synergy
Bloodstained Mire
28% of 139 decks +18% synergy
Morphic Pool
26% of 125 decks +0% synergy
Unclaimed Territory
26% of 139 decks +21% synergy
Scalding Tarn
26% of 139 decks +15% synergy
Dragonskull Summit
26% of 139 decks -5% synergy
Polluted Delta
24% of 139 decks +13% synergy
Smoldering Marsh
24% of 139 decks -8% synergy
Secluded Courtyard
23% of 139 decks +19% synergy
Shipwreck Marsh
22% of 125 decks +3% synergy
Underground River
19% of 125 decks -0% synergy
Temple of Epiphany
18% of 125 decks +0% synergy
Rakdos Carnarium
16% of 139 decks +1% synergy
Stormcarved Coast
15% of 125 decks -2% synergy
Luxury Suite
15% of 139 decks -11% synergy
Temple of Deceit
13% of 125 decks -4% synergy
Grixis Panorama
10% of 139 decks +10% synergy
Temple of Malice
10% of 139 decks -4% synergy
Haunted Ridge
10% of 139 decks -6% synergy
Myriad Landscape
10% of 139 decks -10% synergy
Swiftwater Cliffs
10% of 125 decks +3% synergy
Maestros Theater
9% of 139 decks +8% synergy
Sulfurous Springs
9% of 139 decks -11% synergy
Cavern of Souls
8% of 139 decks +1% synergy
Mana Confluence
6% of 139 decks -1% synergy
Fabled Passage
6% of 139 decks -3% synergy
Dismal Backwater
6% of 125 decks -0% synergy
Choked Estuary
6% of 125 decks -10% synergy
Cascade Bluffs
6% of 125 decks -6% synergy
Foreboding Ruins
5% of 139 decks -11% synergy