Marneus Calgar
The Watcher in the Water

   Prerequisites

What do I need to start this combo?
Marneus Calgar and The Watcher in the Water on the battlefield.
You have a way to draw a card during an opponent's turn. You have a way to interrupt the loop after drawing your library.

   Steps

How does this combo work?
1
Draw a card during an opponent's turn by triggering Marneus Calgar using his activated ability, or by any other method.
2
The Watcher in the Water triggers, creating a 1/1 Tentacle creature token.
3
When the Tentacle enters the battlefield, Marneus Calgar triggers, causing you to draw a card.
4
Repeat from step 2.
5
After drawing any number of cards, interrupt the mandatory infinite loop by winning the game or removing a combo piece in response to a trigger.

   Results

What do I get from this combo?
Infinite card draw
Infinite draw triggers
Near-infinite creature tokens
Near-infinite ETB
The Wandering Minstrel
0.02% of 6635 decks 1 decks
G'raha Tia, Scion Reborn
0.06% of 1600 decks 1 decks
Top Commanders
Marneus Calgar
3.50% of 12849 decks 450 decks
Inquisitor Greyfax
0.42% of 2130 decks 9 decks
Soundwave, Sonic Spy
0.30% of 1647 decks 5 decks
Queza, Augur of Agonies
0.05% of 7421 decks 4 decks
Tivit, Seller of Secrets
0.02% of 12384 decks 3 decks
Kydele, Chosen of Kruphix // Tymna the Weaver
0.27% of 743 decks 2 decks
Alela, Artful Provocateur
0.01% of 13774 decks 1 decks
Oloro, Ageless Ascetic
0.01% of 15440 decks 1 decks
Breya, Etherium Shaper
0.01% of 16803 decks 1 decks
Hargilde, Kindly Runechanter // Wernog, Rider's Chaplain
0.11% of 894 decks 1 decks
Temmet, Naktamun's Will
0.01% of 8593 decks 1 decks
The Celestial Toymaker
0.04% of 2539 decks 1 decks
Atraxa, Grand Unifier
0.01% of 15174 decks 1 decks
The Second Doctor // Vislor Turlough
0.11% of 910 decks 1 decks
New Cards
Kefka, Court Mage
100% of 1 decks +98% synergy
Moonlit Meditation
13% of 23 decks +12% synergy
Tataru Taru
11% of 87 decks +9% synergy
Exalted Sunborn
11% of 28 decks +8% synergy
Starting Town
6% of 88 decks +3% synergy
High Synergy Cards
Nadir Kraken
69% of 483 decks +67% synergy
Ashnod's Altar
69% of 483 decks +62% synergy
Lotho, Corrupt Shirriff
66% of 483 decks +53% synergy
Kambal, Profiteering Mayor
53% of 344 decks +47% synergy
Mirkwood Bats
52% of 483 decks +42% synergy
Pitiless Plunderer
47% of 483 decks +39% synergy
Training Grounds
40% of 483 decks +37% synergy
Prince Imrahil the Fair
37% of 483 decks +35% synergy
Ultramarines Honour Guard
33% of 483 decks +32% synergy
Skullclamp
44% of 483 decks +32% synergy
Top Cards
Swords to Plowshares
82% of 483 decks +19% synergy
Path to Exile
51% of 483 decks +4% synergy
An Offer You Can't Refuse
44% of 483 decks +21% synergy
Counterspell
40% of 483 decks -2% synergy
Black Market Connections
38% of 483 decks +26% synergy
Esper Sentinel
37% of 483 decks +18% synergy
Mondrak, Glory Dominus
37% of 483 decks +30% synergy
Cyclonic Rift
36% of 483 decks +11% synergy
Warren Soultrader
35% of 323 decks +30% synergy
Grim Hireling
35% of 483 decks +31% synergy
Game Changers
Smothering Tithe
69% of 483 decks +46% synergy
Rhystic Study
39% of 483 decks +14% synergy
Demonic Tutor
35% of 483 decks +14% synergy
Enlightened Tutor
33% of 483 decks +17% synergy
Orcish Bowmasters
33% of 483 decks +24% synergy
Thassa's Oracle
28% of 483 decks +21% synergy
Ancient Tomb
25% of 483 decks +15% synergy
The One Ring
22% of 483 decks +13% synergy
Chrome Mox
20% of 483 decks +14% synergy
Mana Vault
20% of 483 decks +14% synergy
Creatures
Elas il-Kor, Sadistic Pilgrim
35% of 483 decks +24% synergy
Charismatic Conqueror
32% of 425 decks +29% synergy
Space Marine Devastator
32% of 483 decks +31% synergy
Adeline, Resplendent Cathar
30% of 483 decks +24% synergy
Vexilus Praetor
28% of 483 decks +27% synergy
Commissar Severina Raine
28% of 483 decks +25% synergy
Laboratory Maniac
27% of 483 decks +22% synergy
Voice of Victory
27% of 128 decks +20% synergy
Grand Abolisher
26% of 483 decks +17% synergy
Emrakul's Messenger
26% of 323 decks +25% synergy
Homunculus Horde
26% of 229 decks +24% synergy
Company Commander
25% of 483 decks +24% synergy
Monastery Mentor
25% of 483 decks +23% synergy
Vanguard Suppressor
25% of 483 decks +24% synergy
Thalisse, Reverent Medium
24% of 483 decks +21% synergy
Sicarian Infiltrator
24% of 483 decks +23% synergy
Inquisitor Greyfax
23% of 483 decks +22% synergy
Chasm Skulker
22% of 483 decks +18% synergy
Zulaport Cutthroat
21% of 483 decks +12% synergy
Corpse Knight
20% of 483 decks +15% synergy
Ojer Taq, Deepest Foundation
20% of 430 decks +16% synergy
Faerie Artisans
19% of 483 decks +19% synergy
Bastion Protector
19% of 483 decks +16% synergy
Drannith Magistrate
19% of 483 decks +13% synergy
Jadar, Ghoulcaller of Nephalia
18% of 483 decks +16% synergy
Faerie Mastermind
17% of 483 decks +11% synergy
Mischievous Mystic
17% of 229 decks +16% synergy
Junk Winder
17% of 483 decks +15% synergy
Hullbreaker Horror
17% of 483 decks +9% synergy
Ethereal Investigator
16% of 483 decks +15% synergy
Ranger-Captain of Eos
16% of 483 decks +12% synergy
Myrel, Shield of Argive
16% of 483 decks +13% synergy
Opposition Agent
16% of 483 decks +9% synergy
Ophiomancer
15% of 483 decks +12% synergy
Ocelot Pride
15% of 321 decks +12% synergy
Stridehangar Automaton
14% of 182 decks +13% synergy
Zephyrim
14% of 483 decks +14% synergy
Tivit, Seller of Secrets
14% of 483 decks +12% synergy
Nadier's Nightblade
14% of 483 decks +10% synergy
Blood Artist
13% of 483 decks +2% synergy
Teysa, Opulent Oligarch
13% of 383 decks +12% synergy
Marionette Apprentice
13% of 323 decks +8% synergy
Sanguinary Priest
13% of 483 decks +13% synergy
Academy Manufactor
13% of 483 decks +9% synergy
Minn, Wily Illusionist
12% of 483 decks +12% synergy
Alandra, Sky Dreamer
12% of 483 decks +11% synergy
Psychosis Crawler
12% of 483 decks +9% synergy
The Council of Four
12% of 483 decks +8% synergy
Dauthi Voidwalker
11% of 483 decks +3% synergy
Forensic Gadgeteer
10% of 381 decks +8% synergy
Instants
Dark Ritual
34% of 483 decks +10% synergy
Swan Song
31% of 483 decks +14% synergy
Fierce Guardianship
31% of 483 decks +12% synergy
Vampiric Tutor
28% of 483 decks +12% synergy
Dovin's Veto
27% of 483 decks +9% synergy
Mana Drain
27% of 483 decks +12% synergy
Deny the Witch
27% of 483 decks +25% synergy
Force of Will
23% of 483 decks +13% synergy
Silence
22% of 483 decks +16% synergy
Anguished Unmaking
22% of 483 decks -2% synergy
Void Rend
22% of 483 decks +8% synergy
Borne Upon a Wind
22% of 483 decks +18% synergy
Demonic Consultation
21% of 483 decks +17% synergy
Force of Negation
21% of 483 decks +13% synergy
Mortify
21% of 483 decks +9% synergy
Mystical Tutor
20% of 483 decks +7% synergy
Teferi's Protection
19% of 483 decks +1% synergy
Flusterstorm
19% of 483 decks +11% synergy
Mental Misstep
18% of 483 decks +12% synergy
Deadly Dispute
18% of 483 decks +6% synergy
Pact of Negation
18% of 483 decks +11% synergy
Tainted Pact
17% of 483 decks +13% synergy
Arcane Denial
17% of 483 decks -3% synergy
Utter End
17% of 483 decks +11% synergy
Dramatic Reversal
17% of 483 decks +12% synergy
Mindbreak Trap
16% of 483 decks +11% synergy
Deadly Rollick
16% of 483 decks +3% synergy
Negate
16% of 483 decks -6% synergy
Inkshield
16% of 483 decks +9% synergy
Entrapment Maneuver
15% of 483 decks +14% synergy
Generous Gift
14% of 483 decks -10% synergy
And They Shall Know No Fear
12% of 483 decks +11% synergy
Muddle the Mixture
12% of 483 decks +8% synergy
Sink into Stupor
12% of 323 decks +3% synergy
Officious Interrogation
12% of 379 decks +11% synergy
Brainstorm
12% of 483 decks -7% synergy
Chain of Vapor
12% of 483 decks +8% synergy
Protect the Negotiators
11% of 483 decks +10% synergy
Flawless Maneuver
11% of 483 decks +1% synergy
March of Swirling Mist
9% of 483 decks +6% synergy
Fell the Profane
8% of 323 decks -0% synergy
Akroma's Will
8% of 483 decks -1% synergy
Despark
8% of 483 decks -6% synergy
Clever Concealment
7% of 483 decks +3% synergy
Rootborn Defenses
7% of 483 decks +4% synergy
Strix Serenade
7% of 323 decks +3% synergy
Dispel
7% of 483 decks +3% synergy
Grand Crescendo
6% of 483 decks +4% synergy
Stroke of Midnight
6% of 477 decks -4% synergy
Secure the Wastes
6% of 483 decks +3% synergy
Sorceries
Toxic Deluge
23% of 483 decks +5% synergy
Martial Coup
22% of 483 decks +19% synergy
Hour of Reckoning
21% of 483 decks +17% synergy
Damn
20% of 483 decks +4% synergy
Diabolic Intent
19% of 483 decks +11% synergy
Imperial Seal
16% of 483 decks +10% synergy
Collective Effort
15% of 483 decks +14% synergy
Sevinne's Reclamation
15% of 483 decks +8% synergy
Beseech the Mirror
14% of 477 decks +10% synergy
Launch the Fleet
13% of 483 decks +13% synergy
Farewell
13% of 483 decks +1% synergy
Exterminatus
12% of 483 decks +11% synergy
For the Emperor!
11% of 483 decks +11% synergy
Fell the Mighty
11% of 483 decks +9% synergy
Supreme Verdict
11% of 483 decks -2% synergy
Reanimate
11% of 483 decks -7% synergy
Deploy to the Front
8% of 483 decks +7% synergy
Windfall
8% of 483 decks -4% synergy
Fabricate
7% of 483 decks +1% synergy
Irenicus's Vile Duplication
6% of 483 decks +3% synergy
Mnemonic Betrayal
6% of 483 decks +3% synergy
Gitaxian Probe
6% of 483 decks +1% synergy
Austere Command
6% of 483 decks -7% synergy
White Sun's Twilight
5% of 483 decks +3% synergy
Utility Artifacts
Shorikai, Genesis Engine
31% of 483 decks +29% synergy
The Golden Throne
25% of 483 decks +25% synergy
Lightning Greaves
23% of 483 decks -2% synergy
Phyrexian Altar
23% of 483 decks +19% synergy
Inquisitorial Rosette
19% of 483 decks +19% synergy
Swiftfoot Boots
17% of 483 decks -10% synergy
Thunderhawk Gunship
17% of 483 decks +16% synergy
Wishclaw Talisman
17% of 483 decks +12% synergy
Oketra's Monument
17% of 483 decks +15% synergy
Isochron Scepter
15% of 483 decks +13% synergy
Time Sieve
11% of 483 decks +8% synergy
Rings of Brighthearth
11% of 483 decks +9% synergy
Idol of Oblivion
10% of 483 decks +5% synergy
Halo Fountain
8% of 483 decks +6% synergy
Wayfarer's Bauble
6% of 483 decks -2% synergy
Collector's Vault
6% of 473 decks +5% synergy
Tamiyo's Journal
6% of 483 decks +5% synergy
Thousand Moons Smithy
6% of 425 decks +4% synergy
Thopter Foundry
6% of 483 decks +4% synergy
Bolas's Citadel
6% of 483 decks -3% synergy
Sword of the Meek
6% of 483 decks +5% synergy
Enchantments
Anointed Procession
30% of 483 decks +22% synergy
Mystic Remora
30% of 483 decks +13% synergy
Bitterblossom
26% of 483 decks +22% synergy
Monologue Tax
21% of 483 decks +18% synergy
Skrelv's Hive
20% of 483 decks +18% synergy
Bastion of Remembrance
18% of 483 decks +12% synergy
Caretaker's Talent
17% of 296 decks +12% synergy
Scuttletide
16% of 483 decks +16% synergy
Felidar Retreat
15% of 483 decks +8% synergy
Birth of the Imperium
14% of 483 decks +12% synergy
Defenders of Humanity
13% of 483 decks +12% synergy
Ominous Seas
13% of 483 decks +10% synergy
Amphibian Downpour
12% of 321 decks +10% synergy
Reconnaissance Mission
11% of 483 decks +7% synergy
Blind Obedience
10% of 483 decks +4% synergy
Divine Visitation
9% of 483 decks +7% synergy
Chivalric Alliance
9% of 483 decks +7% synergy
Revel in Riches
9% of 483 decks +6% synergy
Court of Grace
9% of 483 decks +6% synergy
Teferi's Ageless Insight
8% of 483 decks +3% synergy
Intangible Virtue
8% of 483 decks +3% synergy
Dress Down
6% of 483 decks +5% synergy
The Meathook Massacre
6% of 483 decks +1% synergy
Animate Dead
6% of 483 decks -3% synergy
Legion's Landing
6% of 483 decks +4% synergy
Necropotence
5% of 483 decks -0% synergy
Trouble in Pairs
5% of 379 decks +0% synergy
Planeswalkers
Elspeth, Storm Slayer
19% of 128 decks +14% synergy
Elspeth, Sun's Champion
16% of 483 decks +12% synergy
Liliana, Dreadhorde General
11% of 483 decks +8% synergy
Jace, Wielder of Mysteries
10% of 483 decks +7% synergy
Teferi, Time Raveler
10% of 483 decks +3% synergy
Kaya, Geist Hunter
8% of 483 decks +6% synergy
Teferi, Temporal Pilgrim
7% of 483 decks +6% synergy
Utility Lands
Reliquary Tower
51% of 483 decks +21% synergy
Otawara, Soaring City
30% of 483 decks +14% synergy
Urza's Saga
18% of 483 decks +11% synergy
Bojuka Bog
18% of 483 decks -12% synergy
Field of the Dead
13% of 483 decks +10% synergy
Phyrexian Tower
13% of 483 decks +4% synergy
Castle Ardenvale
12% of 483 decks +7% synergy
Urborg, Tomb of Yawgmoth
11% of 483 decks +2% synergy
Fountainport
10% of 297 decks +8% synergy
Memorial to Glory
9% of 483 decks +8% synergy
Vault of the Archangel
8% of 483 decks -4% synergy
Emergence Zone
7% of 483 decks +5% synergy
Minamo, School at Water's Edge
6% of 483 decks +2% synergy
Eiganjo, Seat of the Empire
6% of 483 decks -1% synergy
Barad-dûr
6% of 483 decks +4% synergy
Minas Tirith
5% of 483 decks -2% synergy
Mana Artifacts
Sol Ring
95% of 483 decks +11% synergy
Arcane Signet
94% of 483 decks +21% synergy
Talisman of Dominance
70% of 483 decks +37% synergy
Talisman of Progress
66% of 483 decks +41% synergy
Talisman of Hierarchy
62% of 483 decks +36% synergy
Thought Vessel
40% of 483 decks +22% synergy
Fellwar Stone
39% of 483 decks +18% synergy
Azorius Signet
29% of 483 decks +5% synergy
Dimir Signet
26% of 483 decks -1% synergy
Orzhov Signet
25% of 483 decks -0% synergy
Lotus Petal
19% of 483 decks +12% synergy
Mind Stone
18% of 483 decks +2% synergy
Mox Opal
17% of 483 decks +13% synergy
Commander's Sphere
16% of 483 decks +2% synergy
Decanter of Endless Water
16% of 483 decks +11% synergy
Mox Diamond
15% of 483 decks +10% synergy
Mana Crypt
13% of 483 decks +9% synergy
Basalt Monolith
12% of 483 decks +9% synergy
Grim Monolith
11% of 483 decks +9% synergy
Jeweled Lotus
11% of 483 decks +9% synergy
Chromatic Lantern
9% of 483 decks -0% synergy
Everflowing Chalice
7% of 483 decks +3% synergy
Mox Amber
6% of 483 decks +2% synergy
Lands
Command Tower
94% of 483 decks +20% synergy
Sandsteppe Citadel
75% of 4 decks +49% synergy
Exotic Orchard
70% of 483 decks +34% synergy
Hallowed Fountain
57% of 483 decks +18% synergy
Godless Shrine
56% of 483 decks +17% synergy
Watery Grave
54% of 483 decks +14% synergy
Marsh Flats
48% of 483 decks +37% synergy
Arcane Sanctum
47% of 483 decks +19% synergy
Flooded Strand
45% of 483 decks +34% synergy
Polluted Delta
45% of 483 decks +33% synergy
Sea of Clouds
45% of 483 decks +19% synergy
Prairie Stream
43% of 483 decks +9% synergy
Morphic Pool
42% of 483 decks +17% synergy
Vault of Champions
41% of 483 decks +16% synergy
Sunken Hollow
40% of 483 decks +6% synergy
Raffine's Tower
40% of 483 decks +15% synergy
Caves of Koilos
35% of 483 decks +6% synergy
Port Town
30% of 483 decks +14% synergy
Path of Ancestry
29% of 483 decks +7% synergy
Skycloud Expanse
28% of 483 decks +14% synergy
Adarkar Wastes
28% of 483 decks +7% synergy
Darkwater Catacombs
28% of 483 decks +13% synergy
Underground River
27% of 483 decks +6% synergy
Isolated Chapel
27% of 483 decks -5% synergy
Glacial Fortress
26% of 483 decks -4% synergy
Choked Estuary
26% of 483 decks +10% synergy
City of Brass
26% of 483 decks +18% synergy
Scrubland
26% of 483 decks +12% synergy
Underground Sea
25% of 483 decks +11% synergy
Tundra
25% of 483 decks +11% synergy
Mana Confluence
24% of 483 decks +17% synergy
Drowned Catacomb
23% of 483 decks -5% synergy
Deserted Beach
22% of 483 decks +5% synergy
Verdant Catacombs
22% of 483 decks +10% synergy
Scalding Tarn
22% of 483 decks +10% synergy
Misty Rainforest
21% of 483 decks +10% synergy
Shipwreck Marsh
21% of 483 decks +2% synergy
Evolving Wilds
21% of 483 decks -0% synergy
Arid Mesa
21% of 483 decks +10% synergy
Terramorphic Expanse
20% of 483 decks +5% synergy
Windswept Heath
19% of 483 decks +8% synergy
Gemstone Caverns
19% of 483 decks +14% synergy
Bloodstained Mire
18% of 483 decks +7% synergy
Shattered Sanctum
16% of 483 decks +1% synergy
Contaminated Landscape
15% of 321 decks +8% synergy
Meticulous Archive
14% of 383 decks +5% synergy
Ash Barrens
13% of 483 decks +9% synergy
Undercity Sewers
12% of 383 decks +1% synergy
Floodfarm Verge
12% of 269 decks +2% synergy
Gloomlake Verge
9% of 269 decks +0% synergy