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
Marneus Calgar
2.6%inclusion398 decks15.6K decks
Inquisitor Greyfax
0.4%inclusion10 decks2.39K decks
Soundwave, Sonic Spy
0.2%inclusion3 decks1.98K decks
Queza, Augur of Agonies
0.0%inclusion3 decks8.52K decks
Tivit, Seller of Secrets
0.0%inclusion3 decks12.5K decks
Temmet, Naktamun's Will
0.0%inclusion1 decks11.8K decks
G'raha Tia, Scion Reborn
0.0%inclusion1 decks3.44K decks
Ravos, Soultender // Sakashima of a Thousand Faces
0.4%inclusion1 decks274 decks
Noctis, Prince of Lucis
0.0%inclusion1 decks7.27K decks
Hashaton, Scarab's Fist
0.0%inclusion1 decks22.3K decks
Ertai, the Corrupted
0.1%inclusion1 decks1.01K decks
Zur the Enchanter
0.0%inclusion1 decks14.8K decks
Atraxa, Grand Unifier
0.0%inclusion1 decks16.5K decks
Alela, Artful Provocateur
0.0%inclusion1 decks15.4K decks
The Wandering Minstrel
0.0%inclusion1 decks14.8K decks
Kraum, Ludevic's Opus // Tymna the Weaver
0.0%inclusion1 decks10.7K decks
Hargilde, Kindly Runechanter // Wernog, Rider's Chaplain
0.1%inclusion1 decks960 decks
The Celestial Toymaker
0.0%inclusion1 decks3.10K decks
New Cards
April O'Neil, Human Element
8.8%inclusion3 decks34 decks
8%synergy
Endless Foot Assault
5.9%inclusion2 decks34 decks
4%synergy
Dream Beavers
3.2%inclusion1 decks31 decks
3%synergy
Ooze Spill
3.1%inclusion1 decks32 decks
3%synergy
Uneasy Alliance
3.1%inclusion1 decks32 decks
3%synergy
High Synergy Cards
Nadir Kraken
71%inclusion306 decks430 decks
70%synergy
Ashnod's Altar
70%inclusion300 decks430 decks
63%synergy
Kambal, Profiteering Mayor
57%inclusion244 decks430 decks
51%synergy
Lotho, Corrupt Shirriff
63%inclusion269 decks430 decks
50%synergy
Mirkwood Bats
53%inclusion228 decks430 decks
44%synergy
Pitiless Plunderer
52%inclusion225 decks430 decks
44%synergy
Prince Imrahil the Fair
39%inclusion166 decks430 decks
37%synergy
Training Grounds
38%inclusion164 decks430 decks
35%synergy
Warren Soultrader
40%inclusion164 decks414 decks
34%synergy
Skullclamp
44%inclusion188 decks430 decks
33%synergy
Top Cards
Swords to Plowshares
80%inclusion346 decks430 decks
19%synergy
Path to Exile
52%inclusion223 decks430 decks
5%synergy
Counterspell
42%inclusion179 decks430 decks
0%synergy
An Offer You Can't Refuse
40%inclusion174 decks430 decks
16%synergy
Mondrak, Glory Dominus
37%inclusion158 decks430 decks
30%synergy
Black Market Connections
37%inclusion157 decks430 decks
24%synergy
Elas il-Kor, Sadistic Pilgrim
36%inclusion154 decks430 decks
26%synergy
Dark Ritual
35%inclusion151 decks430 decks
11%synergy
Charismatic Conqueror
35%inclusion150 decks430 decks
32%synergy
Esper Sentinel
35%inclusion150 decks430 decks
16%synergy
Game Changers
Smothering Tithe
62%inclusion266 decks430 decks
41%synergy
Rhystic Study
35%inclusion150 decks430 decks
12%synergy
Demonic Tutor
31%inclusion134 decks430 decks
12%synergy
Orcish Bowmasters
29%inclusion124 decks430 decks
21%synergy
Enlightened Tutor
28%inclusion119 decks430 decks
13%synergy
Vampiric Tutor
26%inclusion113 decks430 decks
12%synergy
Thassa's Oracle
25%inclusion109 decks430 decks
19%synergy
Ancient Tomb
24%inclusion102 decks430 decks
14%synergy
The One Ring
20%inclusion86 decks430 decks
12%synergy
Chrome Mox
17%inclusion74 decks430 decks
11%synergy
Creatures
Voice of Victory
32%inclusion77 decks241 decks
26%synergy
Ultramarines Honour Guard
30%inclusion131 decks430 decks
30%synergy
Grim Hireling
30%inclusion130 decks430 decks
27%synergy
Space Marine Devastator
30%inclusion128 decks430 decks
29%synergy
Adeline, Resplendent Cathar
29%inclusion125 decks430 decks
24%synergy
Emrakul's Messenger
28%inclusion116 decks414 decks
27%synergy
Commissar Severina Raine
28%inclusion119 decks430 decks
26%synergy
Vexilus Praetor
27%inclusion118 decks430 decks
27%synergy
Company Commander
27%inclusion117 decks430 decks
26%synergy
Laboratory Maniac
25%inclusion108 decks430 decks
20%synergy
Homunculus Horde
25%inclusion82 decks330 decks
23%synergy
Sicarian Infiltrator
24%inclusion103 decks430 decks
23%synergy
Vanguard Suppressor
24%inclusion102 decks430 decks
23%synergy
Inquisitor Greyfax
23%inclusion100 decks430 decks
22%synergy
Faerie Artisans
23%inclusion97 decks430 decks
22%synergy
Grand Abolisher
22%inclusion96 decks430 decks
13%synergy
Thalisse, Reverent Medium
22%inclusion95 decks430 decks
19%synergy
Monastery Mentor
22%inclusion94 decks430 decks
20%synergy
Chasm Skulker
22%inclusion94 decks430 decks
18%synergy
Corpse Knight
22%inclusion94 decks430 decks
17%synergy
Tataru Taru
22%inclusion45 decks206 decks
19%synergy
Ojer Taq, Deepest Foundation
21%inclusion91 decks430 decks
17%synergy
Zulaport Cutthroat
20%inclusion87 decks430 decks
12%synergy
Bastion Protector
17%inclusion75 decks430 decks
14%synergy
Faerie Mastermind
17%inclusion74 decks430 decks
11%synergy
Mischievous Mystic
17%inclusion56 decks330 decks
16%synergy
Stridehangar Automaton
17%inclusion49 decks289 decks
16%synergy
Ethereal Investigator
17%inclusion72 decks430 decks
16%synergy
Tivit, Seller of Secrets
17%inclusion72 decks430 decks
15%synergy
Junk Winder
16%inclusion70 decks430 decks
14%synergy
Ophiomancer
16%inclusion68 decks430 decks
12%synergy
Hullbreaker Horror
16%inclusion68 decks430 decks
8%synergy
Nadier's Nightblade
15%inclusion66 decks430 decks
12%synergy
Drannith Magistrate
15%inclusion66 decks430 decks
11%synergy
Ocelot Pride
15%inclusion63 decks412 decks
12%synergy
Zephyrim
15%inclusion65 decks430 decks
15%synergy
Academy Manufactor
15%inclusion65 decks430 decks
11%synergy
Exalted Sunborn
15%inclusion24 decks163 decks
11%synergy
Ranger-Captain of Eos
14%inclusion60 decks430 decks
10%synergy
Marionette Apprentice
13%inclusion55 decks414 decks
9%synergy
Jadar, Ghoulcaller of Nephalia
13%inclusion57 decks430 decks
11%synergy
Sanguinary Priest
13%inclusion56 decks430 decks
13%synergy
Teysa, Opulent Oligarch
13%inclusion56 decks430 decks
12%synergy
Minn, Wily Illusionist
13%inclusion55 decks430 decks
12%synergy
Blood Artist
13%inclusion54 decks430 decks
1%synergy
Psychosis Crawler
12%inclusion53 decks430 decks
10%synergy
Myrel, Shield of Argive
12%inclusion52 decks430 decks
10%synergy
Forensic Gadgeteer
12%inclusion52 decks430 decks
10%synergy
Opposition Agent
12%inclusion50 decks430 decks
7%synergy
Epistolary Librarian
11%inclusion48 decks430 decks
11%synergy
Instants
Cyclonic Rift
31%inclusion133 decks430 decks
9%synergy
Fierce Guardianship
29%inclusion124 decks430 decks
11%synergy
Swan Song
28%inclusion121 decks430 decks
10%synergy
Deny the Witch
27%inclusion115 decks430 decks
26%synergy
Dovin's Veto
26%inclusion112 decks430 decks
8%synergy
Mana Drain
23%inclusion101 decks430 decks
9%synergy
Anguished Unmaking
23%inclusion99 decks430 decks
-1%synergy
Mortify
23%inclusion98 decks430 decks
12%synergy
Void Rend
22%inclusion96 decks430 decks
8%synergy
Silence
20%inclusion86 decks430 decks
14%synergy
Force of Will
20%inclusion84 decks430 decks
10%synergy
Borne Upon a Wind
19%inclusion83 decks430 decks
15%synergy
Demonic Consultation
19%inclusion81 decks430 decks
15%synergy
Deadly Dispute
18%inclusion78 decks430 decks
6%synergy
Arcane Denial
18%inclusion77 decks430 decks
-2%synergy
Teferi's Protection
18%inclusion76 decks430 decks
1%synergy
Force of Negation
17%inclusion74 decks430 decks
9%synergy
Mystical Tutor
17%inclusion74 decks430 decks
5%synergy
Inkshield
17%inclusion73 decks430 decks
10%synergy
Flusterstorm
17%inclusion71 decks430 decks
9%synergy
Utter End
16%inclusion70 decks430 decks
12%synergy
Deadly Rollick
16%inclusion68 decks430 decks
2%synergy
Negate
16%inclusion68 decks430 decks
-5%synergy
Tainted Pact
15%inclusion64 decks430 decks
11%synergy
Pact of Negation
15%inclusion63 decks430 decks
8%synergy
Entrapment Maneuver
14%inclusion61 decks430 decks
13%synergy
Generous Gift
14%inclusion61 decks430 decks
-7%synergy
And They Shall Know No Fear
13%inclusion58 decks430 decks
12%synergy
Mental Misstep
13%inclusion58 decks430 decks
8%synergy
Mindbreak Trap
13%inclusion57 decks430 decks
8%synergy
Officious Interrogation
13%inclusion56 decks430 decks
12%synergy
Dramatic Reversal
13%inclusion54 decks430 decks
8%synergy
Sink into Stupor
12%inclusion51 decks414 decks
2%synergy
Flawless Maneuver
12%inclusion52 decks430 decks
2%synergy
Protect the Negotiators
11%inclusion46 decks430 decks
10%synergy
Akroma's Will
8.4%inclusion36 decks430 decks
-2%synergy
Fell the Profane
8.2%inclusion34 decks414 decks
-1%synergy
Muddle the Mixture
7.9%inclusion34 decks430 decks
4%synergy
Despark
7.9%inclusion34 decks430 decks
-6%synergy
Brainstorm
7.9%inclusion34 decks430 decks
-10%synergy
Chain of Vapor
7.4%inclusion32 decks430 decks
4%synergy
Clever Concealment
7.2%inclusion31 decks430 decks
3%synergy
Grand Crescendo
6.7%inclusion29 decks430 decks
5%synergy
Rootborn Defenses
6.5%inclusion28 decks430 decks
4%synergy
Stroke of Midnight
6.5%inclusion28 decks430 decks
-4%synergy
Strix Serenade
6.3%inclusion26 decks414 decks
3%synergy
Secure the Wastes
6.0%inclusion26 decks430 decks
3%synergy
Into the Flood Maw
5.6%inclusion22 decks392 decks
2%synergy
Dispel
5.6%inclusion24 decks430 decks
2%synergy
Malakir Rebirth
5.6%inclusion24 decks430 decks
-3%synergy
Sorceries
Martial Coup
22%inclusion94 decks430 decks
19%synergy
Hour of Reckoning
21%inclusion92 decks430 decks
18%synergy
Toxic Deluge
21%inclusion89 decks430 decks
3%synergy
Diabolic Intent
18%inclusion79 decks430 decks
11%synergy
Damn
16%inclusion70 decks430 decks
1%synergy
Collective Effort
15%inclusion65 decks430 decks
14%synergy
Farewell
15%inclusion65 decks430 decks
3%synergy
Imperial Seal
15%inclusion64 decks430 decks
10%synergy
Exterminatus
14%inclusion61 decks430 decks
14%synergy
Sevinne's Reclamation
14%inclusion59 decks430 decks
7%synergy
Launch the Fleet
13%inclusion58 decks430 decks
13%synergy
For the Emperor!
13%inclusion56 decks430 decks
13%synergy
Fell the Mighty
12%inclusion51 decks430 decks
9%synergy
Reanimate
12%inclusion51 decks430 decks
-7%synergy
Beseech the Mirror
11%inclusion49 decks430 decks
8%synergy
Supreme Verdict
10%inclusion44 decks430 decks
-2%synergy
Windfall
7.7%inclusion33 decks430 decks
-4%synergy
Deploy to the Front
7.2%inclusion31 decks430 decks
7%synergy
Fabricate
6.7%inclusion29 decks430 decks
1%synergy
Austere Command
6.0%inclusion26 decks430 decks
-6%synergy
Irenicus's Vile Duplication
5.3%inclusion23 decks430 decks
2%synergy
Utility Artifacts
Shorikai, Genesis Engine
27%inclusion117 decks430 decks
25%synergy
The Golden Throne
26%inclusion112 decks430 decks
26%synergy
Phyrexian Altar
26%inclusion111 decks430 decks
22%synergy
Lightning Greaves
25%inclusion106 decks430 decks
0%synergy
Inquisitorial Rosette
21%inclusion92 decks430 decks
21%synergy
Swiftfoot Boots
19%inclusion82 decks430 decks
-8%synergy
Oketra's Monument
17%inclusion73 decks430 decks
15%synergy
Thunderhawk Gunship
17%inclusion72 decks430 decks
16%synergy
Wishclaw Talisman
15%inclusion63 decks430 decks
10%synergy
Time Sieve
13%inclusion56 decks430 decks
10%synergy
Isochron Scepter
11%inclusion47 decks430 decks
9%synergy
Rings of Brighthearth
10%inclusion45 decks430 decks
9%synergy
Idol of Oblivion
9.3%inclusion40 decks430 decks
5%synergy
Thopter Fabricator
7.3%inclusion21 decks289 decks
6%synergy
Illusionist's Bracers
6.5%inclusion28 decks430 decks
5%synergy
Tamiyo's Journal
6.3%inclusion27 decks430 decks
6%synergy
Wayfarer's Bauble
6.3%inclusion27 decks430 decks
-1%synergy
Thousand Moons Smithy
5.8%inclusion25 decks430 decks
4%synergy
Halo Fountain
5.6%inclusion24 decks430 decks
4%synergy
Thopter Foundry
5.3%inclusion23 decks430 decks
4%synergy
Enchantments
Anointed Procession
29%inclusion125 decks430 decks
22%synergy
Mystic Remora
27%inclusion116 decks430 decks
11%synergy
Bitterblossom
24%inclusion105 decks430 decks
20%synergy
Monologue Tax
24%inclusion103 decks430 decks
21%synergy
Bastion of Remembrance
21%inclusion89 decks430 decks
14%synergy
Scuttletide
19%inclusion83 decks430 decks
19%synergy
Skrelv's Hive
17%inclusion71 decks430 decks
15%synergy
Caretaker's Talent
16%inclusion63 decks389 decks
12%synergy
Birth of the Imperium
15%inclusion65 decks430 decks
13%synergy
Amphibian Downpour
13%inclusion54 decks412 decks
11%synergy
Defenders of Humanity
13%inclusion54 decks430 decks
12%synergy
Felidar Retreat
12%inclusion52 decks430 decks
6%synergy
Ominous Seas
12%inclusion50 decks430 decks
9%synergy
Reconnaissance Mission
10%inclusion44 decks430 decks
7%synergy
Blind Obedience
10%inclusion43 decks430 decks
4%synergy
Moonlit Meditation
9.4%inclusion15 decks159 decks
8%synergy
Divine Visitation
9.3%inclusion40 decks430 decks
7%synergy
Intangible Virtue
9.1%inclusion39 decks430 decks
5%synergy
Obsessive Pursuit
9.0%inclusion8 decks89 decks
8%synergy
Chivalric Alliance
8.1%inclusion35 decks430 decks
7%synergy
Teferi's Ageless Insight
7.2%inclusion31 decks430 decks
3%synergy
Revel in Riches
6.7%inclusion29 decks430 decks
4%synergy
Court of Grace
6.5%inclusion28 decks430 decks
4%synergy
Mechanized Production
6.0%inclusion26 decks430 decks
3%synergy
The Meathook Massacre
6.0%inclusion26 decks430 decks
1%synergy
Smuggler's Share
5.6%inclusion24 decks430 decks
3%synergy
Legion's Landing
5.3%inclusion23 decks430 decks
4%synergy
Propaganda
5.3%inclusion23 decks430 decks
-9%synergy
Animate Dead
5.1%inclusion22 decks430 decks
-4%synergy
Planeswalkers
Elspeth, Storm Slayer
18%inclusion44 decks241 decks
13%synergy
Elspeth, Sun's Champion
15%inclusion65 decks430 decks
11%synergy
Liliana, Dreadhorde General
12%inclusion53 decks430 decks
9%synergy
Teferi, Time Raveler
9.3%inclusion40 decks430 decks
3%synergy
Jace, Wielder of Mysteries
8.8%inclusion38 decks430 decks
6%synergy
Kaya, Geist Hunter
6.0%inclusion26 decks430 decks
4%synergy
Utility Lands
Reliquary Tower
54%inclusion233 decks430 decks
24%synergy
Otawara, Soaring City
24%inclusion105 decks430 decks
8%synergy
Bojuka Bog
20%inclusion86 decks430 decks
-10%synergy
Urza's Saga
18%inclusion76 decks430 decks
11%synergy
Phyrexian Tower
14%inclusion60 decks430 decks
5%synergy
Castle Ardenvale
12%inclusion50 decks430 decks
7%synergy
Urborg, Tomb of Yawgmoth
11%inclusion46 decks430 decks
2%synergy
Field of the Dead
10%inclusion45 decks430 decks
8%synergy
Fountainport
9.0%inclusion35 decks390 decks
7%synergy
Memorial to Glory
8.4%inclusion36 decks430 decks
8%synergy
Vault of the Archangel
7.9%inclusion34 decks430 decks
-4%synergy
Emergence Zone
7.2%inclusion31 decks430 decks
5%synergy
Minamo, School at Water's Edge
6.3%inclusion27 decks430 decks
2%synergy
Temple of the False God
5.8%inclusion25 decks430 decks
-3%synergy
Barad-dûr
5.6%inclusion24 decks430 decks
4%synergy
Mana Artifacts
Sol Ring
95%inclusion408 decks430 decks
11%synergy
Arcane Signet
93%inclusion399 decks430 decks
21%synergy
Talisman of Dominance
66%inclusion284 decks430 decks
34%synergy
Talisman of Progress
64%inclusion274 decks430 decks
39%synergy
Talisman of Hierarchy
59%inclusion254 decks430 decks
33%synergy
Thought Vessel
42%inclusion179 decks430 decks
24%synergy
Fellwar Stone
35%inclusion152 decks430 decks
15%synergy
Azorius Signet
27%inclusion117 decks430 decks
6%synergy
Dimir Signet
25%inclusion106 decks430 decks
1%synergy
Orzhov Signet
24%inclusion105 decks430 decks
2%synergy
Mind Stone
18%inclusion76 decks430 decks
3%synergy
Lotus Petal
17%inclusion75 decks430 decks
10%synergy
Mana Vault
17%inclusion73 decks430 decks
11%synergy
Commander's Sphere
17%inclusion71 decks430 decks
5%synergy
Mox Opal
16%inclusion70 decks430 decks
12%synergy
Decanter of Endless Water
15%inclusion63 decks430 decks
11%synergy
Basalt Monolith
14%inclusion61 decks430 decks
12%synergy
Mox Diamond
13%inclusion57 decks430 decks
9%synergy
Grim Monolith
9.3%inclusion40 decks430 decks
7%synergy
Chromatic Lantern
7.7%inclusion33 decks430 decks
-1%synergy
Mox Amber
7.0%inclusion30 decks430 decks
2%synergy
Everflowing Chalice
6.7%inclusion29 decks430 decks
3%synergy
Lands
Command Tower
94%inclusion403 decks430 decks
20%synergy
Exotic Orchard
65%inclusion281 decks430 decks
29%synergy
Hallowed Fountain
57%inclusion247 decks430 decks
17%synergy
Godless Shrine
56%inclusion242 decks430 decks
15%synergy
Watery Grave
55%inclusion235 decks430 decks
13%synergy
Arcane Sanctum
48%inclusion207 decks430 decks
21%synergy
Polluted Delta
46%inclusion199 decks430 decks
34%synergy
Flooded Strand
46%inclusion198 decks430 decks
35%synergy
Marsh Flats
46%inclusion197 decks430 decks
35%synergy
Prairie Stream
45%inclusion195 decks430 decks
12%synergy
Sunken Hollow
44%inclusion189 decks430 decks
10%synergy
Sea of Clouds
41%inclusion178 decks430 decks
17%synergy
Vault of Champions
41%inclusion175 decks430 decks
17%synergy
Morphic Pool
39%inclusion169 decks430 decks
15%synergy
Caves of Koilos
36%inclusion156 decks430 decks
7%synergy
Raffine's Tower
36%inclusion154 decks430 decks
12%synergy
Skycloud Expanse
30%inclusion128 decks430 decks
15%synergy
Adarkar Wastes
30%inclusion128 decks430 decks
6%synergy
Isolated Chapel
29%inclusion126 decks430 decks
-4%synergy
Path of Ancestry
29%inclusion123 decks430 decks
6%synergy
Port Town
28%inclusion122 decks430 decks
14%synergy
Darkwater Catacombs
28%inclusion121 decks430 decks
14%synergy
Glacial Fortress
28%inclusion121 decks430 decks
-5%synergy
Underground River
27%inclusion115 decks430 decks
4%synergy
Underground Sea
26%inclusion112 decks430 decks
11%synergy
Scrubland
26%inclusion111 decks430 decks
12%synergy
Tundra
26%inclusion110 decks430 decks
12%synergy
Choked Estuary
26%inclusion110 decks430 decks
10%synergy
Drowned Catacomb
24%inclusion105 decks430 decks
-5%synergy
City of Brass
23%inclusion99 decks430 decks
15%synergy
Evolving Wilds
22%inclusion93 decks430 decks
1%synergy
Mana Confluence
21%inclusion91 decks430 decks
14%synergy
Deserted Beach
21%inclusion91 decks430 decks
4%synergy
Misty Rainforest
21%inclusion89 decks430 decks
9%synergy
Shipwreck Marsh
20%inclusion88 decks430 decks
3%synergy
Scalding Tarn
20%inclusion85 decks430 decks
9%synergy
Terramorphic Expanse
19%inclusion83 decks430 decks
4%synergy
Verdant Catacombs
19%inclusion82 decks430 decks
8%synergy
Bloodstained Mire
19%inclusion82 decks430 decks
8%synergy
Arid Mesa
19%inclusion81 decks430 decks
9%synergy
Windswept Heath
18%inclusion76 decks430 decks
7%synergy
Gemstone Caverns
17%inclusion71 decks430 decks
11%synergy
Shattered Sanctum
16%inclusion67 decks430 decks
0%synergy
Meticulous Archive
14%inclusion60 decks430 decks
5%synergy
Floodfarm Verge
13%inclusion49 decks365 decks
4%synergy
Contaminated Landscape
13%inclusion53 decks412 decks
7%synergy
Ash Barrens
13%inclusion55 decks430 decks
8%synergy
Undercity Sewers
13%inclusion55 decks430 decks
1%synergy
Gloomlake Verge
11%inclusion40 decks365 decks
2%synergy
Shadowy Backstreet
10%inclusion43 decks430 decks
0%synergy