Altaïr Ibn-La'Ahad + Bloodthirster + Maskwood Nexus

Altaïr Ibn-La'Ahad
Bloodthirster
Maskwood Nexus

Requires
Altaïr Ibn-La'Ahad must be on the battlefield. Bloodthirster must be in the graveyard. Maskwood Nexus must be on the battlefield. An opponent cannot block creatures you control. You have a way to give Altaïr Ibn-La'Ahad vigilance.
Steps
  1. Give Altaïr Ibn-La'Ahad vigilance by any method.
  2. Declare Altaïr Ibn-La'Ahad as an attacker.
  3. Altaïr Ibn-La'Ahad triggers, exiling Bloodthirster from your graveyard with a memory counter on it as it is an Assassin due to Maskwood Nexus, and then creating a tapped and attacking token copy of each creature you own in exile with a memory counter on it.
  4. Deal combat damage to an opponent using the Bloodthirster token.
  5. The Bloodthirster token triggers, causing you to untap it and to get an additional combat phase after this one.
  6. At the end of your combat phase, Altaïr Ibn-La'Ahad triggers, exiling the Bloodthirster token.
  7. Move to your next combat phase, and declare Altaïr Ibn-La'Ahad as an attacker.
  8. Altaïr Ibn-La'Ahad triggers, creating a tapped and attacking token copy of each creature you own in exile with a memory counter on it.
  9. Repeat from step 4.
Results
Infinite combat damage. Infinite combat phases. Infinite ETB. Infinite LTB.

Altaïr Ibn-La'Ahad
1.92% of 2130 decks 41 decks
New Cards
Three Tree City
62% of 13 decks +47% synergy
Fear of Missing Out
21% of 14 decks +21% synergy
High Synergy Cards
Roshan, Hidden Magister
82% of 39 decks +80% synergy
Isshin, Two Heavens as One
77% of 43 decks +76% synergy
The Animus
76% of 42 decks +76% synergy
Arno Dorian
75% of 28 decks +73% synergy
Buried Alive
74% of 43 decks +72% synergy
Ruthless Lawbringer
71% of 41 decks +70% synergy
The Master, Multiplied
70% of 43 decks +69% synergy
Port Razer
70% of 43 decks +69% synergy
Faithless Looting
77% of 43 decks +68% synergy
Aya of Alexandria
68% of 34 decks +65% synergy
Top Cards
Path to Exile
70% of 43 decks +49% synergy
Lightning Greaves
70% of 43 decks +44% synergy
Ashes of the Fallen
65% of 43 decks +65% synergy
Big Game Hunter
65% of 43 decks +65% synergy
Swords to Plowshares
65% of 43 decks +37% synergy
Massacre Girl, Known Killer
64% of 42 decks +63% synergy
Conspiracy
63% of 43 decks +63% synergy
Mari, the Killing Quill
63% of 43 decks +62% synergy
Entomb
63% of 43 decks +59% synergy
Desmond Miles
62% of 39 decks +59% synergy
Creatures
Queen Marchesa
60% of 43 decks +60% synergy
Nekrataal
58% of 43 decks +58% synergy
Virtus the Veiled
56% of 43 decks +56% synergy
Roaming Throne
56% of 43 decks +45% synergy
Bayek of Siwa
54% of 39 decks +51% synergy
Olivia, Opulent Outlaw
54% of 41 decks +53% synergy
Brotherhood Patriarch
50% of 20 decks +49% synergy
Merciless Harlequin
50% of 34 decks +49% synergy
Mondrak, Glory Dominus
49% of 43 decks +44% synergy
Murderous Redcap
47% of 43 decks +46% synergy
Undercity Eliminator
43% of 42 decks +43% synergy
Aurelia, the Warleader
37% of 43 decks +36% synergy
Ojer Taq, Deepest Foundation
35% of 43 decks +32% synergy
Layla Hassan
33% of 39 decks +31% synergy
Vile Entomber
33% of 43 decks +31% synergy
Mirkwood Bats
33% of 43 decks +26% synergy
Arbaaz Mir
32% of 34 decks +30% synergy
Unscrupulous Contractor
32% of 41 decks +31% synergy
Dockside Extortionist
30% of 43 decks +22% synergy
Anger
28% of 43 decks +25% synergy
Vein Ripper
26% of 42 decks +25% synergy
Ravenloft Adventurer
26% of 43 decks +25% synergy
Garza's Assassin
23% of 43 decks +23% synergy
Fleshtaker
21% of 43 decks +21% synergy
Doom Whisperer
21% of 43 decks +20% synergy
Assassin Initiate
21% of 34 decks +19% synergy
Shay Cormac
21% of 39 decks +19% synergy
Thorn of the Black Rose
19% of 43 decks +18% synergy
Esper Sentinel
19% of 43 decks +9% synergy
Kassandra, Eagle Bearer
18% of 39 decks +17% synergy
Raffine's Silencer
16% of 43 decks +16% synergy
Kelsien, the Plague
16% of 43 decks +16% synergy
Solemn Simulacrum
16% of 43 decks +2% synergy
Godo, Bandit Warlord
14% of 43 decks +13% synergy
Vial Smasher, Gleeful Grenadier
12% of 41 decks +12% synergy
Goblin Assassin
12% of 43 decks +12% synergy
Caesar, Legion's Emperor
12% of 43 decks +11% synergy
Irregular Cohort
12% of 43 decks +11% synergy
Cadric, Soul Kindler
12% of 43 decks +11% synergy
Combat Celebrant
12% of 43 decks +10% synergy
Karlach, Fury of Avernus
12% of 43 decks +10% synergy
Mirror Entity
12% of 43 decks +9% synergy
Purphoros, God of the Forge
12% of 43 decks +9% synergy
Terror of the Peaks
12% of 43 decks +9% synergy
Wei Assassins
9% of 43 decks +9% synergy
Midnight Assassin
9% of 43 decks +9% synergy
Hired Poisoner
9% of 43 decks +9% synergy
Royal Assassin
9% of 43 decks +9% synergy
Species Specialist
9% of 43 decks +9% synergy
Massacre Girl
9% of 43 decks +8% synergy
Instants
Thrill of Possibility
47% of 43 decks +41% synergy
Enlightened Tutor
44% of 43 decks +36% synergy
Demand Answers
42% of 43 decks +38% synergy
Teferi's Protection
42% of 43 decks +33% synergy
Big Score
37% of 43 decks +33% synergy
Deflecting Swat
35% of 43 decks +27% synergy
Anguished Unmaking
33% of 43 decks +27% synergy
Deadly Dispute
30% of 43 decks +25% synergy
Vampiric Tutor
30% of 43 decks +21% synergy
Flawless Maneuver
26% of 43 decks +21% synergy
Village Rites
26% of 43 decks +20% synergy
Unexpected Windfall
23% of 43 decks +20% synergy
Akroma's Will
23% of 43 decks +19% synergy
Deadly Rollick
23% of 43 decks +18% synergy
Boros Charm
19% of 43 decks +13% synergy
Chaos Warp
19% of 43 decks +3% synergy
Great Train Heist
15% of 41 decks +12% synergy
Mortify
12% of 43 decks +9% synergy
Terminate
12% of 43 decks +7% synergy
Dark Ritual
12% of 43 decks +0% synergy
Chain Assassination
10% of 39 decks +9% synergy
Crackling Doom
9% of 43 decks +8% synergy
Stroke of Midnight
9% of 43 decks +3% synergy
Razorgrass Ambush
8% of 39 decks +6% synergy
Final Showdown
7% of 41 decks +5% synergy
Loran's Escape
7% of 43 decks +6% synergy
Murder
7% of 43 decks +5% synergy
Go for the Throat
7% of 43 decks +3% synergy
Generous Gift
7% of 43 decks -5% synergy
Sorceries
Overpowering Attack
57% of 28 decks +53% synergy
Cathartic Reunion
53% of 43 decks +52% synergy
Demonic Tutor
42% of 43 decks +30% synergy
Unmarked Grave
33% of 43 decks +31% synergy
Ruinous Ultimatum
28% of 43 decks +26% synergy
Gamble
26% of 43 decks +21% synergy
Vandalblast
23% of 43 decks +15% synergy
Thrilling Discovery
21% of 43 decks +20% synergy
Seize the Day
19% of 43 decks +17% synergy
Tormenting Voice
16% of 43 decks +15% synergy
Damn
16% of 43 decks +12% synergy
Blasphemous Act
16% of 43 decks -0% synergy
Final Parting
14% of 43 decks +13% synergy
Farewell
14% of 43 decks +8% synergy
Idyllic Tutor
12% of 43 decks +9% synergy
Grim Tutor
12% of 43 decks +9% synergy
Imperial Seal
12% of 43 decks +9% synergy
Lively Dirge
10% of 41 decks +8% synergy
Reckless Handling
9% of 43 decks +8% synergy
Seize the Spoils
9% of 43 decks +8% synergy
Diabolic Intent
9% of 43 decks +5% synergy
Reanimate
9% of 43 decks +2% synergy
Feed the Swarm
9% of 43 decks -0% synergy
Sundering Eruption
8% of 39 decks +5% synergy
Mythos of Snapdax
7% of 43 decks +7% synergy
Wheel of Fortune
7% of 43 decks +4% synergy
Diabolic Tutor
7% of 43 decks +4% synergy
Austere Command
7% of 43 decks +1% synergy
Toxic Deluge
7% of 43 decks -2% synergy
Utility Artifacts
Brotherhood Regalia
53% of 34 decks +45% synergy
Swiftfoot Boots
47% of 43 decks +18% synergy
Sundial of the Infinite
35% of 43 decks +34% synergy
Helm of the Host
33% of 43 decks +29% synergy
Haystack
29% of 42 decks +28% synergy
Whispersilk Cloak
28% of 43 decks +24% synergy
Mithril Coat
26% of 43 decks +19% synergy
Panharmonicon
16% of 43 decks +12% synergy
The Spear of Leonidas
15% of 39 decks +13% synergy
Smoke Bomb
15% of 34 decks +13% synergy
Key to the City
14% of 43 decks +13% synergy
Sword of Feast and Famine
14% of 43 decks +12% synergy
Hidden Blade
12% of 42 decks +11% synergy
Hookblade
12% of 34 decks +11% synergy
Altar of Dementia
12% of 43 decks +9% synergy
Silver Shroud Costume
10% of 42 decks +8% synergy
Mirror Box
9% of 43 decks +8% synergy
Strionic Resonator
9% of 43 decks +6% synergy
Mesmeric Orb
7% of 43 decks +6% synergy
Trailblazer's Boots
7% of 43 decks +5% synergy
Sword of the Animist
7% of 43 decks +2% synergy
The One Ring
7% of 43 decks -2% synergy
Enchantments
Reconnaissance
58% of 43 decks +57% synergy
Cover of Darkness
56% of 43 decks +55% synergy
Anointed Procession
42% of 43 decks +38% synergy
Impact Tremors
42% of 43 decks +37% synergy
Warleader's Call
40% of 42 decks +38% synergy
Aggravated Assault
30% of 43 decks +29% synergy
Goblin Bombardment
28% of 43 decks +25% synergy
Black Market Connections
21% of 43 decks +15% synergy
Smothering Tithe
19% of 43 decks +7% synergy
Cathars' Crusade
14% of 43 decks +11% synergy
Ripples of Undeath
13% of 39 decks +9% synergy
Sneak Attack
12% of 43 decks +10% synergy
Phyrexian Arena
12% of 43 decks +4% synergy
Bitter Reunion
9% of 43 decks +8% synergy
Grim Reaper's Sprint
7% of 42 decks +6% synergy
Trouble in Pairs
7% of 42 decks +3% synergy
Breath of Fury
7% of 43 decks +7% synergy
Descendants' Fury
7% of 43 decks +6% synergy
Rising of the Day
7% of 43 decks +4% synergy
Planeswalkers
Dihada, Binder of Wills
14% of 43 decks +13% synergy
Zariel, Archduke of Avernus
7% of 43 decks +7% synergy
Utility Lands
Rogue's Passage
53% of 43 decks +34% synergy
Urborg, Tomb of Yawgmoth
30% of 43 decks +20% synergy
Vault of the Archangel
23% of 43 decks +21% synergy
Maze of Ith
19% of 43 decks +16% synergy
Bojuka Bog
19% of 43 decks +3% synergy
Reliquary Tower
19% of 43 decks -11% synergy
Arena of Glory
18% of 39 decks +12% synergy
Shizo, Death's Storehouse
16% of 43 decks +14% synergy
Ancient Tomb
14% of 43 decks +3% synergy
Spymaster's Vault
13% of 39 decks +10% synergy
Access Tunnel
12% of 43 decks +10% synergy
Minas Morgul, Dark Fortress
9% of 43 decks +8% synergy
Takenuma, Abandoned Mire
9% of 43 decks +4% synergy
The Black Gate
7% of 43 decks +5% synergy
Geier Reach Sanitarium
7% of 43 decks +3% synergy
Phyrexian Tower
7% of 43 decks +3% synergy
Eiganjo, Seat of the Empire
7% of 43 decks +3% synergy
Mana Artifacts
Arcane Signet
81% of 43 decks +10% synergy
Sol Ring
81% of 43 decks -3% synergy
Talisman of Conviction
42% of 43 decks +37% synergy
Talisman of Hierarchy
42% of 43 decks +36% synergy
Talisman of Indulgence
37% of 43 decks +31% synergy
Rakdos Signet
28% of 43 decks +21% synergy
Orzhov Signet
19% of 43 decks +12% synergy
Fellwar Stone
19% of 43 decks -2% synergy
Chromatic Lantern
14% of 43 decks +4% synergy
Boros Signet
12% of 43 decks +6% synergy
Mind Stone
12% of 43 decks -6% synergy
Mana Crypt
9% of 43 decks -2% synergy
Commander's Sphere
9% of 43 decks -7% synergy
Lands
Command Tower
91% of 43 decks +17% synergy
Savai Triome
63% of 43 decks +60% synergy
Blood Crypt
63% of 43 decks +54% synergy
Sacred Foundry
58% of 43 decks +50% synergy
Godless Shrine
58% of 43 decks +49% synergy
Brotherhood Headquarters
56% of 39 decks +54% synergy
Bloodstained Mire
53% of 43 decks +43% synergy
Arid Mesa
51% of 43 decks +40% synergy
Luxury Suite
49% of 43 decks +43% synergy
Marsh Flats
49% of 43 decks +37% synergy
Exotic Orchard
49% of 43 decks +14% synergy
Vault of Champions
47% of 43 decks +41% synergy
Dragonskull Summit
44% of 43 decks +37% synergy
Raucous Theater
43% of 42 decks +40% synergy
Nomad Outpost
42% of 43 decks +39% synergy
Spectator Seating
42% of 43 decks +36% synergy
Clifftop Retreat
40% of 43 decks +34% synergy
Path of Ancestry
40% of 43 decks +19% synergy
Shadowy Backstreet
38% of 42 decks +35% synergy
Isolated Chapel
35% of 43 decks +29% synergy
Elegant Parlor
33% of 42 decks +31% synergy
Cavern of Souls
30% of 43 decks +24% synergy
Caves of Koilos
28% of 43 decks +22% synergy
Shattered Sanctum
23% of 43 decks +20% synergy
Sulfurous Springs
23% of 43 decks +19% synergy
Battlefield Forge
23% of 43 decks +18% synergy
Sundown Pass
21% of 43 decks +17% synergy
Smoldering Marsh
19% of 43 decks +11% synergy
Plateau
16% of 43 decks +13% synergy
Scrubland
16% of 43 decks +13% synergy
Badlands
16% of 43 decks +13% synergy
Haunted Ridge
16% of 43 decks +13% synergy
Shattered Landscape
15% of 39 decks +14% synergy
Windswept Heath
14% of 43 decks +4% synergy
Scalding Tarn
14% of 43 decks +3% synergy
Polluted Delta
14% of 43 decks +3% synergy
Brightclimb Pathway
12% of 43 decks +9% synergy
Fetid Heath
12% of 43 decks +9% synergy
City of Brass
12% of 43 decks +3% synergy
Sunbaked Canyon
9% of 43 decks +8% synergy
Unclaimed Territory
9% of 43 decks +4% synergy
Reflecting Pool
9% of 43 decks +4% synergy
Mana Confluence
9% of 43 decks +2% synergy
Flooded Strand
9% of 43 decks -1% synergy
Silent Clearing
7% of 43 decks +6% synergy
Concealed Courtyard
7% of 43 decks +6% synergy
Needleverge Pathway
7% of 43 decks +5% synergy
Rugged Prairie
7% of 43 decks +5% synergy
Blightstep Pathway
7% of 43 decks +5% synergy
Shineshadow Snarl
7% of 43 decks +4% synergy