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
2.7%inclusion407 decks15K decks
Inquisitor Greyfax
0.4%inclusion10 decks2.34K decks
Soundwave, Sonic Spy
0.2%inclusion3 decks1.86K decks
Queza, Augur of Agonies
0.0%inclusion3 decks8.11K decks
Tivit, Seller of Secrets
0.0%inclusion3 decks12.3K decks
Hargilde, Kindly Runechanter // Wernog, Rider's Chaplain
0.2%inclusion2 decks979 decks
Temmet, Naktamun's Will
0.0%inclusion1 decks11K decks
G'raha Tia, Scion Reborn
0.0%inclusion1 decks3.05K decks
Ravos, Soultender // Sakashima of a Thousand Faces
0.4%inclusion1 decks256 decks
Noctis, Prince of Lucis
0.0%inclusion1 decks6.63K decks
Hashaton, Scarab's Fist
0.0%inclusion1 decks20.7K decks
Kydele, Chosen of Kruphix // Tymna the Weaver
0.1%inclusion1 decks845 decks
The Second Doctor // Vislor Turlough
0.1%inclusion1 decks971 decks
Atraxa, Grand Unifier
0.0%inclusion1 decks16K decks
Alela, Artful Provocateur
0.0%inclusion1 decks14.9K decks
The Wandering Minstrel
0.0%inclusion1 decks13K decks
Kraum, Ludevic's Opus // Tymna the Weaver
0.0%inclusion1 decks10.2K decks
The Celestial Toymaker
0.0%inclusion1 decks2.91K decks
New Cards
Bitterbloom Bearer
6.9%inclusion6 decks87 decks
5%synergy
Eirdu, Carrier of Dawn
2.3%inclusion2 decks87 decks
1%synergy
High Synergy Cards
Nadir Kraken
71%inclusion312 decks441 decks
69%synergy
Ashnod's Altar
70%inclusion308 decks441 decks
63%synergy
Kambal, Profiteering Mayor
55%inclusion231 decks419 decks
49%synergy
Lotho, Corrupt Shirriff
62%inclusion275 decks441 decks
49%synergy
Mirkwood Bats
52%inclusion228 decks441 decks
43%synergy
Pitiless Plunderer
51%inclusion223 decks441 decks
42%synergy
Prince Imrahil the Fair
39%inclusion171 decks441 decks
37%synergy
Training Grounds
39%inclusion171 decks441 decks
36%synergy
Warren Soultrader
40%inclusion158 decks399 decks
34%synergy
Skullclamp
43%inclusion190 decks441 decks
32%synergy
Top Cards
Swords to Plowshares
80%inclusion351 decks441 decks
18%synergy
Path to Exile
51%inclusion223 decks441 decks
3%synergy
An Offer You Can't Refuse
41%inclusion183 decks441 decks
17%synergy
Counterspell
41%inclusion182 decks441 decks
-1%synergy
Mondrak, Glory Dominus
37%inclusion162 decks441 decks
30%synergy
Black Market Connections
36%inclusion160 decks441 decks
24%synergy
Elas il-Kor, Sadistic Pilgrim
36%inclusion157 decks441 decks
26%synergy
Dark Ritual
35%inclusion156 decks441 decks
11%synergy
Charismatic Conqueror
35%inclusion153 decks441 decks
31%synergy
Rhystic Study
35%inclusion153 decks441 decks
11%synergy
Game Changers
Smothering Tithe
63%inclusion276 decks441 decks
41%synergy
Demonic Tutor
31%inclusion138 decks441 decks
12%synergy
Orcish Bowmasters
30%inclusion132 decks441 decks
21%synergy
Enlightened Tutor
29%inclusion129 decks441 decks
14%synergy
Thassa's Oracle
26%inclusion114 decks441 decks
20%synergy
Ancient Tomb
24%inclusion104 decks441 decks
14%synergy
The One Ring
20%inclusion89 decks441 decks
12%synergy
Mana Vault
17%inclusion77 decks441 decks
12%synergy
Chrome Mox
17%inclusion77 decks441 decks
12%synergy
Drannith Magistrate
16%inclusion72 decks441 decks
12%synergy
Creatures
Esper Sentinel
34%inclusion152 decks441 decks
15%synergy
Grim Hireling
32%inclusion139 decks441 decks
28%synergy
Ultramarines Honour Guard
31%inclusion138 decks441 decks
31%synergy
Voice of Victory
31%inclusion70 decks224 decks
25%synergy
Space Marine Devastator
30%inclusion134 decks441 decks
30%synergy
Adeline, Resplendent Cathar
29%inclusion127 decks441 decks
23%synergy
Vexilus Praetor
28%inclusion123 decks441 decks
27%synergy
Emrakul's Messenger
28%inclusion111 decks399 decks
27%synergy
Commissar Severina Raine
27%inclusion120 decks441 decks
25%synergy
Company Commander
27%inclusion119 decks441 decks
26%synergy
Laboratory Maniac
25%inclusion111 decks441 decks
21%synergy
Sicarian Infiltrator
25%inclusion109 decks441 decks
24%synergy
Homunculus Horde
25%inclusion77 decks314 decks
23%synergy
Vanguard Suppressor
24%inclusion108 decks441 decks
24%synergy
Inquisitor Greyfax
24%inclusion104 decks441 decks
23%synergy
Grand Abolisher
24%inclusion104 decks441 decks
14%synergy
Monastery Mentor
23%inclusion100 decks441 decks
21%synergy
Corpse Knight
23%inclusion100 decks441 decks
17%synergy
Faerie Artisans
22%inclusion96 decks441 decks
21%synergy
Chasm Skulker
22%inclusion95 decks441 decks
18%synergy
Thalisse, Reverent Medium
21%inclusion93 decks441 decks
18%synergy
Ojer Taq, Deepest Foundation
21%inclusion92 decks441 decks
17%synergy
Zulaport Cutthroat
21%inclusion92 decks441 decks
12%synergy
Tataru Taru
21%inclusion39 decks188 decks
18%synergy
Stridehangar Automaton
18%inclusion48 decks272 decks
17%synergy
Bastion Protector
17%inclusion77 decks441 decks
14%synergy
Ethereal Investigator
17%inclusion76 decks441 decks
16%synergy
Faerie Mastermind
17%inclusion75 decks441 decks
10%synergy
Mischievous Mystic
17%inclusion53 decks314 decks
16%synergy
Hullbreaker Horror
17%inclusion74 decks441 decks
9%synergy
Junk Winder
16%inclusion72 decks441 decks
14%synergy
Zephyrim
16%inclusion70 decks441 decks
16%synergy
Tivit, Seller of Secrets
16%inclusion70 decks441 decks
14%synergy
Ocelot Pride
16%inclusion63 decks397 decks
13%synergy
Ophiomancer
15%inclusion67 decks441 decks
12%synergy
Nadier's Nightblade
15%inclusion65 decks441 decks
11%synergy
Academy Manufactor
15%inclusion64 decks441 decks
11%synergy
Ranger-Captain of Eos
14%inclusion63 decks441 decks
10%synergy
Jadar, Ghoulcaller of Nephalia
14%inclusion62 decks441 decks
12%synergy
Teysa, Opulent Oligarch
13%inclusion59 decks441 decks
12%synergy
Exalted Sunborn
13%inclusion19 decks145 decks
10%synergy
Marionette Apprentice
13%inclusion52 decks399 decks
8%synergy
Sanguinary Priest
13%inclusion57 decks441 decks
13%synergy
Minn, Wily Illusionist
13%inclusion57 decks441 decks
12%synergy
Myrel, Shield of Argive
13%inclusion56 decks441 decks
11%synergy
Opposition Agent
13%inclusion56 decks441 decks
7%synergy
Psychosis Crawler
12%inclusion54 decks441 decks
9%synergy
Blood Artist
12%inclusion54 decks441 decks
1%synergy
Forensic Gadgeteer
12%inclusion53 decks441 decks
10%synergy
Alandra, Sky Dreamer
11%inclusion49 decks441 decks
10%synergy
Instants
Cyclonic Rift
32%inclusion139 decks441 decks
9%synergy
Fierce Guardianship
29%inclusion128 decks441 decks
11%synergy
Swan Song
28%inclusion123 decks441 decks
10%synergy
Dovin's Veto
27%inclusion117 decks441 decks
8%synergy
Deny the Witch
26%inclusion116 decks441 decks
25%synergy
Vampiric Tutor
26%inclusion116 decks441 decks
11%synergy
Mana Drain
24%inclusion107 decks441 decks
10%synergy
Mortify
22%inclusion99 decks441 decks
12%synergy
Anguished Unmaking
22%inclusion96 decks441 decks
-3%synergy
Void Rend
21%inclusion93 decks441 decks
6%synergy
Silence
21%inclusion92 decks441 decks
15%synergy
Force of Will
20%inclusion90 decks441 decks
10%synergy
Borne Upon a Wind
20%inclusion87 decks441 decks
16%synergy
Demonic Consultation
20%inclusion86 decks441 decks
16%synergy
Deadly Dispute
18%inclusion81 decks441 decks
6%synergy
Force of Negation
18%inclusion79 decks441 decks
10%synergy
Mystical Tutor
18%inclusion79 decks441 decks
6%synergy
Utter End
18%inclusion78 decks441 decks
13%synergy
Arcane Denial
18%inclusion78 decks441 decks
-3%synergy
Flusterstorm
17%inclusion77 decks441 decks
10%synergy
Inkshield
17%inclusion74 decks441 decks
10%synergy
Teferi's Protection
17%inclusion74 decks441 decks
0%synergy
Pact of Negation
16%inclusion70 decks441 decks
9%synergy
Tainted Pact
15%inclusion68 decks441 decks
12%synergy
Deadly Rollick
15%inclusion68 decks441 decks
2%synergy
Negate
15%inclusion68 decks441 decks
-6%synergy
Entrapment Maneuver
15%inclusion65 decks441 decks
14%synergy
Mental Misstep
15%inclusion64 decks441 decks
9%synergy
And They Shall Know No Fear
14%inclusion63 decks441 decks
13%synergy
Mindbreak Trap
14%inclusion63 decks441 decks
9%synergy
Generous Gift
14%inclusion61 decks441 decks
-8%synergy
Officious Interrogation
13%inclusion58 decks441 decks
12%synergy
Dramatic Reversal
13%inclusion58 decks441 decks
9%synergy
Sink into Stupor
13%inclusion50 decks399 decks
2%synergy
Protect the Negotiators
11%inclusion49 decks441 decks
11%synergy
Flawless Maneuver
11%inclusion48 decks441 decks
0%synergy
Chain of Vapor
9.1%inclusion40 decks441 decks
6%synergy
Fell the Profane
8.8%inclusion35 decks399 decks
0%synergy
Muddle the Mixture
8.6%inclusion38 decks441 decks
4%synergy
Despark
8.6%inclusion38 decks441 decks
-5%synergy
Brainstorm
8.6%inclusion38 decks441 decks
-10%synergy
Akroma's Will
7.9%inclusion35 decks441 decks
-2%synergy
Clever Concealment
7.3%inclusion32 decks441 decks
3%synergy
Rootborn Defenses
7.0%inclusion31 decks441 decks
4%synergy
Grand Crescendo
6.8%inclusion30 decks441 decks
5%synergy
Strix Serenade
6.8%inclusion27 decks399 decks
3%synergy
Stroke of Midnight
6.3%inclusion28 decks441 decks
-4%synergy
Into the Flood Maw
6.1%inclusion23 decks376 decks
2%synergy
Secure the Wastes
5.7%inclusion25 decks441 decks
3%synergy
Dispel
5.7%inclusion25 decks441 decks
2%synergy
Sorceries
Martial Coup
23%inclusion100 decks441 decks
20%synergy
Hour of Reckoning
21%inclusion94 decks441 decks
18%synergy
Toxic Deluge
21%inclusion93 decks441 decks
3%synergy
Diabolic Intent
18%inclusion81 decks441 decks
11%synergy
Damn
17%inclusion73 decks441 decks
1%synergy
Collective Effort
16%inclusion70 decks441 decks
15%synergy
Imperial Seal
15%inclusion67 decks441 decks
10%synergy
Farewell
15%inclusion67 decks441 decks
2%synergy
Exterminatus
14%inclusion62 decks441 decks
14%synergy
Sevinne's Reclamation
14%inclusion62 decks441 decks
7%synergy
Launch the Fleet
14%inclusion60 decks441 decks
13%synergy
For the Emperor!
13%inclusion57 decks441 decks
13%synergy
Fell the Mighty
12%inclusion53 decks441 decks
10%synergy
Beseech the Mirror
12%inclusion53 decks441 decks
9%synergy
Reanimate
12%inclusion51 decks441 decks
-7%synergy
Supreme Verdict
11%inclusion47 decks441 decks
-2%synergy
Windfall
7.5%inclusion33 decks441 decks
-4%synergy
Deploy to the Front
7.3%inclusion32 decks441 decks
7%synergy
Fabricate
7.0%inclusion31 decks441 decks
2%synergy
Spirit Water Revival
6.1%inclusion4 decks66 decks
4%synergy
Austere Command
5.9%inclusion26 decks441 decks
-6%synergy
Irenicus's Vile Duplication
5.7%inclusion25 decks441 decks
3%synergy
Utility Artifacts
Shorikai, Genesis Engine
28%inclusion124 decks441 decks
26%synergy
The Golden Throne
26%inclusion116 decks441 decks
26%synergy
Phyrexian Altar
25%inclusion112 decks441 decks
22%synergy
Lightning Greaves
24%inclusion108 decks441 decks
0%synergy
Inquisitorial Rosette
22%inclusion95 decks441 decks
21%synergy
Swiftfoot Boots
18%inclusion79 decks441 decks
-9%synergy
Thunderhawk Gunship
17%inclusion75 decks441 decks
17%synergy
Oketra's Monument
17%inclusion74 decks441 decks
15%synergy
Wishclaw Talisman
16%inclusion69 decks441 decks
10%synergy
Time Sieve
12%inclusion53 decks441 decks
9%synergy
Rings of Brighthearth
12%inclusion51 decks441 decks
10%synergy
Isochron Scepter
12%inclusion51 decks441 decks
10%synergy
Idol of Oblivion
9.1%inclusion40 decks441 decks
4%synergy
Tamiyo's Journal
6.3%inclusion28 decks441 decks
6%synergy
Illusionist's Bracers
6.3%inclusion28 decks441 decks
5%synergy
Thousand Moons Smithy
6.1%inclusion27 decks441 decks
4%synergy
Wayfarer's Bauble
5.9%inclusion26 decks441 decks
-2%synergy
Thopter Fabricator
5.5%inclusion15 decks272 decks
5%synergy
Thopter Foundry
5.4%inclusion24 decks441 decks
4%synergy
Halo Fountain
5.2%inclusion23 decks441 decks
3%synergy
Enchantments
Anointed Procession
29%inclusion129 decks441 decks
22%synergy
Mystic Remora
27%inclusion119 decks441 decks
11%synergy
Bitterblossom
24%inclusion106 decks441 decks
20%synergy
Monologue Tax
21%inclusion94 decks441 decks
19%synergy
Bastion of Remembrance
21%inclusion92 decks441 decks
14%synergy
Scuttletide
19%inclusion83 decks441 decks
19%synergy
Skrelv's Hive
17%inclusion73 decks441 decks
15%synergy
Caretaker's Talent
16%inclusion59 decks373 decks
11%synergy
Birth of the Imperium
15%inclusion68 decks441 decks
14%synergy
Amphibian Downpour
14%inclusion56 decks397 decks
12%synergy
Defenders of Humanity
13%inclusion57 decks441 decks
13%synergy
Felidar Retreat
12%inclusion54 decks441 decks
6%synergy
Ominous Seas
12%inclusion51 decks441 decks
9%synergy
Reconnaissance Mission
11%inclusion49 decks441 decks
7%synergy
Obsessive Pursuit
11%inclusion7 decks64 decks
10%synergy
Blind Obedience
10%inclusion45 decks441 decks
4%synergy
Divine Visitation
9.3%inclusion41 decks441 decks
7%synergy
Chivalric Alliance
8.4%inclusion37 decks441 decks
7%synergy
Intangible Virtue
8.2%inclusion36 decks441 decks
4%synergy
Revel in Riches
7.5%inclusion33 decks441 decks
5%synergy
Teferi's Ageless Insight
7.5%inclusion33 decks441 decks
3%synergy
Moonlit Meditation
7.1%inclusion10 decks141 decks
6%synergy
Court of Grace
7.0%inclusion31 decks441 decks
5%synergy
The Meathook Massacre
6.3%inclusion28 decks441 decks
1%synergy
Legion's Landing
6.1%inclusion27 decks441 decks
5%synergy
Mechanized Production
5.7%inclusion25 decks441 decks
3%synergy
Smuggler's Share
5.4%inclusion24 decks441 decks
3%synergy
Touch the Spirit Realm
5.2%inclusion23 decks441 decks
3%synergy
Trouble in Pairs
5.2%inclusion23 decks441 decks
1%synergy
Animate Dead
5.2%inclusion23 decks441 decks
-4%synergy
Planeswalkers
Elspeth, Storm Slayer
17%inclusion39 decks224 decks
13%synergy
Elspeth, Sun's Champion
15%inclusion68 decks441 decks
11%synergy
Liliana, Dreadhorde General
12%inclusion52 decks441 decks
8%synergy
Jace, Wielder of Mysteries
9.3%inclusion41 decks441 decks
6%synergy
Teferi, Time Raveler
9.1%inclusion40 decks441 decks
3%synergy
Kaya, Geist Hunter
6.6%inclusion29 decks441 decks
5%synergy
Utility Lands
Reliquary Tower
52%inclusion231 decks441 decks
22%synergy
Otawara, Soaring City
25%inclusion110 decks441 decks
9%synergy
Bojuka Bog
19%inclusion82 decks441 decks
-11%synergy
Urza's Saga
17%inclusion77 decks441 decks
10%synergy
Phyrexian Tower
14%inclusion61 decks441 decks
5%synergy
Field of the Dead
11%inclusion49 decks441 decks
8%synergy
Castle Ardenvale
11%inclusion49 decks441 decks
7%synergy
Urborg, Tomb of Yawgmoth
10%inclusion44 decks441 decks
1%synergy
Fountainport
9.1%inclusion34 decks374 decks
8%synergy
Memorial to Glory
8.4%inclusion37 decks441 decks
8%synergy
Vault of the Archangel
8.2%inclusion36 decks441 decks
-4%synergy
Emergence Zone
7.0%inclusion31 decks441 decks
5%synergy
Minamo, School at Water's Edge
6.6%inclusion29 decks441 decks
2%synergy
Temple of the False God
5.4%inclusion24 decks441 decks
-4%synergy
Barad-dûr
5.2%inclusion23 decks441 decks
3%synergy
Command Beacon
5.2%inclusion23 decks441 decks
0%synergy
Mana Artifacts
Sol Ring
95%inclusion418 decks441 decks
11%synergy
Arcane Signet
92%inclusion407 decks441 decks
20%synergy
Talisman of Dominance
67%inclusion294 decks441 decks
34%synergy
Talisman of Progress
64%inclusion281 decks441 decks
38%synergy
Talisman of Hierarchy
60%inclusion264 decks441 decks
34%synergy
Thought Vessel
41%inclusion180 decks441 decks
23%synergy
Fellwar Stone
37%inclusion161 decks441 decks
16%synergy
Azorius Signet
28%inclusion124 decks441 decks
7%synergy
Dimir Signet
25%inclusion110 decks441 decks
0%synergy
Orzhov Signet
25%inclusion109 decks441 decks
1%synergy
Lotus Petal
18%inclusion78 decks441 decks
11%synergy
Mind Stone
17%inclusion77 decks441 decks
3%synergy
Mox Opal
17%inclusion76 decks441 decks
13%synergy
Commander's Sphere
16%inclusion70 decks441 decks
4%synergy
Decanter of Endless Water
16%inclusion69 decks441 decks
12%synergy
Basalt Monolith
15%inclusion67 decks441 decks
13%synergy
Mox Diamond
14%inclusion60 decks441 decks
9%synergy
Grim Monolith
10%inclusion44 decks441 decks
8%synergy
Mox Amber
7.7%inclusion34 decks441 decks
3%synergy
Chromatic Lantern
7.7%inclusion34 decks441 decks
-1%synergy
Everflowing Chalice
6.8%inclusion30 decks441 decks
3%synergy
Mana Crypt
6.1%inclusion27 decks441 decks
4%synergy
Lands
Command Tower
93%inclusion411 decks441 decks
19%synergy
Exotic Orchard
67%inclusion294 decks441 decks
30%synergy
Hallowed Fountain
58%inclusion254 decks441 decks
18%synergy
Godless Shrine
57%inclusion250 decks441 decks
15%synergy
Watery Grave
54%inclusion239 decks441 decks
13%synergy
Arcane Sanctum
48%inclusion213 decks441 decks
21%synergy
Marsh Flats
47%inclusion207 decks441 decks
36%synergy
Flooded Strand
47%inclusion206 decks441 decks
35%synergy
Polluted Delta
46%inclusion204 decks441 decks
34%synergy
Prairie Stream
44%inclusion196 decks441 decks
11%synergy
Sunken Hollow
43%inclusion189 decks441 decks
9%synergy
Sea of Clouds
42%inclusion187 decks441 decks
18%synergy
Vault of Champions
42%inclusion185 decks441 decks
18%synergy
Morphic Pool
41%inclusion181 decks441 decks
17%synergy
Raffine's Tower
36%inclusion157 decks441 decks
11%synergy
Caves of Koilos
34%inclusion152 decks441 decks
5%synergy
Skycloud Expanse
29%inclusion128 decks441 decks
15%synergy
Path of Ancestry
29%inclusion128 decks441 decks
7%synergy
Isolated Chapel
29%inclusion127 decks441 decks
-5%synergy
Port Town
29%inclusion126 decks441 decks
14%synergy
Adarkar Wastes
29%inclusion126 decks441 decks
5%synergy
Darkwater Catacombs
28%inclusion122 decks441 decks
13%synergy
Glacial Fortress
28%inclusion122 decks441 decks
-5%synergy
Underground Sea
26%inclusion116 decks441 decks
12%synergy
Underground River
26%inclusion116 decks441 decks
4%synergy
Scrubland
26%inclusion115 decks441 decks
12%synergy
Tundra
26%inclusion114 decks441 decks
12%synergy
Choked Estuary
25%inclusion112 decks441 decks
10%synergy
City of Brass
24%inclusion105 decks441 decks
16%synergy
Drowned Catacomb
23%inclusion102 decks441 decks
-6%synergy
Mana Confluence
22%inclusion97 decks441 decks
15%synergy
Evolving Wilds
22%inclusion97 decks441 decks
1%synergy
Deserted Beach
21%inclusion94 decks441 decks
4%synergy
Misty Rainforest
21%inclusion93 decks441 decks
10%synergy
Scalding Tarn
20%inclusion89 decks441 decks
9%synergy
Shipwreck Marsh
20%inclusion89 decks441 decks
2%synergy
Arid Mesa
20%inclusion86 decks441 decks
9%synergy
Terramorphic Expanse
20%inclusion86 decks441 decks
4%synergy
Verdant Catacombs
19%inclusion85 decks441 decks
8%synergy
Bloodstained Mire
19%inclusion84 decks441 decks
8%synergy
Windswept Heath
18%inclusion81 decks441 decks
7%synergy
Gemstone Caverns
17%inclusion75 decks441 decks
12%synergy
Shattered Sanctum
16%inclusion71 decks441 decks
1%synergy
Meticulous Archive
14%inclusion62 decks441 decks
6%synergy
Undercity Sewers
13%inclusion57 decks441 decks
2%synergy
Floodfarm Verge
13%inclusion45 decks349 decks
4%synergy
Contaminated Landscape
13%inclusion51 decks397 decks
6%synergy
Ash Barrens
12%inclusion55 decks441 decks
8%synergy
Gloomlake Verge
11%inclusion40 decks349 decks
2%synergy
Shadowy Backstreet
10%inclusion45 decks441 decks
0%synergy