Skeleton Ship
Intruder Alarm
Geralf's Messenger
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Skeleton Ship does not have summoning sickness. Geralf's Messenger does not have any +1/+1 counters.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Geralf's Messenger.
2
Geralf's Messenger dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3
Geralf's Messenger enters the battlefield, triggering itself and Intruder Alarm.
4
Resolve the Geralf's Messenger trigger, causing an opponent to lose 2 life.
5
Resolve the Intruder Alarm trigger, untapping all creatures.
6
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Geralf's Messenger's power.
7
Activate Skeleton Ship by tapping it, putting a -1/-1 counter on Geralf's Messenger.
8
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite lifeloss
Infinite LTB
Infinite mana creatures you control can produce
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Infinite untap of creatures
Skeleton Ship
0.7%inclusion7 decks1.06K decks
The Scarab God
0.0%inclusion1 decks12.4K decks
New Cards
North Pole Patrol
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
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88%inclusion7 decks8 decks
87%synergy
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88%inclusion7 decks8 decks
87%synergy
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75%inclusion6 decks8 decks
75%synergy
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75%inclusion6 decks8 decks
74%synergy
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75%inclusion6 decks8 decks
74%synergy
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72%synergy
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62%synergy
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63%inclusion5 decks8 decks
62%synergy
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Top Cards
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50%inclusion4 decks8 decks
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49%synergy
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50%inclusion4 decks8 decks
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48%synergy
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48%synergy
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30%synergy
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21%synergy
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19%synergy
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13%synergy
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14%synergy
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12%synergy
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11%synergy
Creatures
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44%synergy
Kelpie Guide
38%inclusion3 decks8 decks
37%synergy
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38%inclusion3 decks8 decks
36%synergy
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38%inclusion3 decks8 decks
36%synergy
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38%inclusion3 decks8 decks
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38%inclusion3 decks8 decks
35%synergy
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38%inclusion3 decks8 decks
35%synergy
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38%inclusion3 decks8 decks
31%synergy
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29%inclusion2 decks7 decks
28%synergy
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24%synergy
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25%inclusion2 decks8 decks
22%synergy
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25%inclusion2 decks8 decks
22%synergy
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22%synergy
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21%synergy
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19%synergy
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25%inclusion2 decks8 decks
15%synergy
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12%synergy
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2%synergy
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20%inclusion1 decks5 decks
20%synergy
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17%inclusion1 decks6 decks
17%synergy
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14%inclusion1 decks7 decks
14%synergy
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12%synergy
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12%synergy
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12%synergy
Instants
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17%synergy
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14%synergy
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10%synergy
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10%synergy
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8%synergy
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8%synergy
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4%synergy
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3%synergy
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2%synergy
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-1%synergy
Utility Artifacts
Ashnod's Altar
50%inclusion4 decks8 decks
43%synergy
Assault Suit
38%inclusion3 decks8 decks
37%synergy
Contagion Engine
38%inclusion3 decks8 decks
36%synergy
Thousand-Year Elixir
38%inclusion3 decks8 decks
36%synergy
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38%inclusion3 decks8 decks
36%synergy
Skullclamp
38%inclusion3 decks8 decks
28%synergy
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38%inclusion3 decks8 decks
24%synergy
Lightning Greaves
38%inclusion3 decks8 decks
10%synergy
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25%inclusion2 decks8 decks
24%synergy
Isochron Scepter
25%inclusion2 decks8 decks
22%synergy
Swiftfoot Boots
25%inclusion2 decks8 decks
1%synergy
Doom Cannon
13%inclusion1 decks8 decks
12%synergy
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13%inclusion1 decks8 decks
12%synergy
Helm of Possession
13%inclusion1 decks8 decks
12%synergy
Serrated Arrows
13%inclusion1 decks8 decks
12%synergy
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13%inclusion1 decks8 decks
12%synergy
Salvaging Station
13%inclusion1 decks8 decks
12%synergy
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13%inclusion1 decks8 decks
12%synergy
Recon Craft Theta
13%inclusion1 decks8 decks
12%synergy
Clown Car
13%inclusion1 decks8 decks
12%synergy
Glaring Spotlight
13%inclusion1 decks8 decks
12%synergy
Skeleton Key
13%inclusion1 decks8 decks
12%synergy
Aetherflux Reservoir
13%inclusion1 decks8 decks
11%synergy
Power Conduit
13%inclusion1 decks8 decks
11%synergy
Time Sieve
13%inclusion1 decks8 decks
10%synergy
Whip of Erebos
13%inclusion1 decks8 decks
10%synergy
Wishclaw Talisman
13%inclusion1 decks8 decks
8%synergy
The One Ring
13%inclusion1 decks8 decks
5%synergy
Enchantments
Dismiss into Dream
38%inclusion3 decks8 decks
37%synergy
Case of the Stashed Skeleton
38%inclusion3 decks8 decks
37%synergy
Rooftop Storm
25%inclusion2 decks8 decks
14%synergy
Phyrexian Arena
25%inclusion2 decks8 decks
12%synergy
Mystic Remora
25%inclusion2 decks8 decks
9%synergy
Crab Umbra
13%inclusion1 decks8 decks
12%synergy
Faces of the Past
13%inclusion1 decks8 decks
12%synergy
Retreat to Coralhelm
13%inclusion1 decks8 decks
12%synergy
Confounding Conundrum
13%inclusion1 decks8 decks
12%synergy
Attrition
13%inclusion1 decks8 decks
12%synergy
Biotransference
13%inclusion1 decks8 decks
12%synergy
Grave Betrayal
13%inclusion1 decks8 decks
11%synergy
Eaten by Piranhas
13%inclusion1 decks8 decks
11%synergy
Amphibian Downpour
13%inclusion1 decks8 decks
10%synergy
Dress Down
13%inclusion1 decks8 decks
10%synergy
No Mercy
13%inclusion1 decks8 decks
10%synergy
Open the Graves
13%inclusion1 decks8 decks
8%synergy
Black Market
13%inclusion1 decks8 decks
7%synergy
Grave Pact
13%inclusion1 decks8 decks
7%synergy
Endless Ranks of the Dead
13%inclusion1 decks8 decks
5%synergy
Necroduality
13%inclusion1 decks8 decks
5%synergy
Propaganda
13%inclusion1 decks8 decks
-4%synergy
Planeswalkers
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13%inclusion1 decks8 decks
12%synergy
Tevesh Szat, Doom of Fools
13%inclusion1 decks8 decks
12%synergy
Vraska, Betrayal's Sting
13%inclusion1 decks8 decks
11%synergy
Liliana, Untouched by Death
13%inclusion1 decks8 decks
10%synergy
Narset, Parter of Veils
13%inclusion1 decks8 decks
9%synergy
Ashiok, Nightmare Muse
13%inclusion1 decks8 decks
9%synergy
Liliana, Dreadhorde General
13%inclusion1 decks8 decks
7%synergy
Liliana, Death's Majesty
13%inclusion1 decks8 decks
7%synergy
Utility Lands
Minamo, School at Water's Edge
63%inclusion5 decks8 decks
58%synergy
Arcane Lighthouse
38%inclusion3 decks8 decks
37%synergy
Bojuka Bog
38%inclusion3 decks8 decks
-1%synergy
Karn's Bastion
25%inclusion2 decks8 decks
22%synergy
Mystic Sanctuary
25%inclusion2 decks8 decks
8%synergy
Urborg, Tomb of Yawgmoth
25%inclusion2 decks8 decks
5%synergy
Reliquary Tower
25%inclusion2 decks8 decks
-11%synergy
Lonely Sandbar
13%inclusion1 decks8 decks
10%synergy
Barren Moor
13%inclusion1 decks8 decks
10%synergy
Nykthos, Shrine to Nyx
13%inclusion1 decks8 decks
10%synergy
Witch's Cottage
13%inclusion1 decks8 decks
9%synergy
Cephalid Coliseum
13%inclusion1 decks8 decks
7%synergy
Urza's Saga
13%inclusion1 decks8 decks
7%synergy
Three Tree City
13%inclusion1 decks8 decks
5%synergy
Cabal Coffers
13%inclusion1 decks8 decks
2%synergy
Otawara, Soaring City
13%inclusion1 decks8 decks
-6%synergy
Mana Artifacts
Arcane Signet
88%inclusion7 decks8 decks
3%synergy
Sol Ring
88%inclusion7 decks8 decks
-1%synergy
Dimir Signet
63%inclusion5 decks8 decks
2%synergy
Talisman of Dominance
38%inclusion3 decks8 decks
-21%synergy
Patriar's Seal
25%inclusion2 decks8 decks
24%synergy
Mind Stone
25%inclusion2 decks8 decks
-4%synergy
Empowered Autogenerator
13%inclusion1 decks8 decks
12%synergy
Chromatic Orrery
13%inclusion1 decks8 decks
12%synergy
Basalt Monolith
13%inclusion1 decks8 decks
11%synergy
Replicating Ring
13%inclusion1 decks8 decks
11%synergy
Dimir Cluestone
13%inclusion1 decks8 decks
11%synergy
Mox Opal
13%inclusion1 decks8 decks
8%synergy
Mox Diamond
13%inclusion1 decks8 decks
8%synergy
Mana Vault
13%inclusion1 decks8 decks
7%synergy
Chrome Mox
13%inclusion1 decks8 decks
6%synergy
Commander's Sphere
13%inclusion1 decks8 decks
-5%synergy
Thought Vessel
13%inclusion1 decks8 decks
-19%synergy
Lands
Watery Grave
75%inclusion6 decks8 decks
28%synergy
Drowned Catacomb
75%inclusion6 decks8 decks
22%synergy
Command Tower
75%inclusion6 decks8 decks
-13%synergy
Shipwreck Marsh
63%inclusion5 decks8 decks
23%synergy
Sunken Hollow
63%inclusion5 decks8 decks
-3%synergy
Polluted Delta
38%inclusion3 decks8 decks
6%synergy
Morphic Pool
38%inclusion3 decks8 decks
1%synergy
Dimir Aqueduct
38%inclusion3 decks8 decks
-2%synergy
Choked Estuary
38%inclusion3 decks8 decks
-10%synergy
Verdant Catacombs
25%inclusion2 decks8 decks
17%synergy
Marsh Flats
25%inclusion2 decks8 decks
17%synergy
Bloodstained Mire
25%inclusion2 decks8 decks
17%synergy
Misty Rainforest
25%inclusion2 decks8 decks
16%synergy
Flooded Strand
25%inclusion2 decks8 decks
16%synergy
Underground Sea
25%inclusion2 decks8 decks
12%synergy
Fetid Pools
25%inclusion2 decks8 decks
9%synergy
Undercity Sewers
25%inclusion2 decks8 decks
5%synergy
Myriad Landscape
25%inclusion2 decks8 decks
2%synergy
Temple of Deceit
25%inclusion2 decks8 decks
-11%synergy
Underground River
25%inclusion2 decks8 decks
-14%synergy
Darkwater Catacombs
25%inclusion2 decks8 decks
-15%synergy
Tainted Isle
25%inclusion2 decks8 decks
-19%synergy
Submerged Boneyard
13%inclusion1 decks8 decks
8%synergy
Gemstone Caverns
13%inclusion1 decks8 decks
7%synergy
Mana Confluence
13%inclusion1 decks8 decks
6%synergy
Prismatic Vista
13%inclusion1 decks8 decks
6%synergy
City of Brass
13%inclusion1 decks8 decks
6%synergy
Fabled Passage
13%inclusion1 decks8 decks
4%synergy
Scalding Tarn
13%inclusion1 decks8 decks
4%synergy
Evolving Wilds
13%inclusion1 decks8 decks
-4%synergy
Clearwater Pathway
13%inclusion1 decks8 decks
-12%synergy
Exotic Orchard
13%inclusion1 decks8 decks
-21%synergy