Hapatra, Vizier of Poisons
Skeleton Ship
Intruder Alarm
1

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Skeleton Ship does not have summoning sickness.

   Steps

How does this combo work?
1
Activate Skeleton Ship by tapping it, putting a -1/-1 counter on target creature.
2
Hapatra triggers, creating a 1/1 Snake creature token.
3
The Snake enters the battlefield, triggering Intruder Alarm, untapping all creatures.
4
Repeat.

   Results

What do I get from this combo?
Infinite -1/-1 counters
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mana creatures you control can produce
Infinite untap of creatures
Xavier Sal, Infested Captain
0.08% of 6100 decks 5 decks
Volrath, the Shapestealer
0.03% of 3004 decks 1 decks
High Synergy Cards
Blowfly Infestation
100% of 6 decks +100% synergy
Black Sun's Zenith
100% of 6 decks +98% synergy
Toxrill, the Corrosive
100% of 6 decks +96% synergy
Tekuthal, Inquiry Dominus
100% of 6 decks +96% synergy
Obelisk Spider
83% of 6 decks +83% synergy
Nest of Scarabs
83% of 6 decks +83% synergy
Ezuri, Stalker of Spheres
83% of 6 decks +80% synergy
Karn's Bastion
83% of 6 decks +75% synergy
Serrated Arrows
67% of 6 decks +67% synergy
Flourishing Defenses
67% of 6 decks +67% synergy
Top Cards
Carnifex Demon
67% of 6 decks +66% synergy
Crumbling Ashes
67% of 6 decks +66% synergy
Yawgmoth, Thran Physician
67% of 6 decks +65% synergy
Contagion Clasp
67% of 6 decks +63% synergy
Inexorable Tide
67% of 6 decks +58% synergy
Swiftfoot Boots
67% of 6 decks +42% synergy
Cultivate
67% of 6 decks +23% synergy
Game Changers
Urza, Lord High Artificer
17% of 6 decks +16% synergy
Notion Thief
17% of 6 decks +12% synergy
Worldly Tutor
17% of 6 decks +6% synergy
Field of the Dead
17% of 6 decks +6% synergy
Fierce Guardianship
17% of 6 decks +1% synergy
Demonic Tutor
17% of 6 decks -2% synergy
Rhystic Study
17% of 6 decks -6% synergy
Cyclonic Rift
17% of 6 decks -7% synergy
Creatures
Spitting Dilophosaurus
60% of 5 decks +59% synergy
Compy Swarm
60% of 5 decks +59% synergy
Midnight Banshee
50% of 6 decks +50% synergy
Banewhip Punisher
50% of 6 decks +50% synergy
Grismold, the Dreadsower
50% of 6 decks +50% synergy
Necroskitter
50% of 6 decks +49% synergy
Massacre Girl, Known Killer
50% of 4 decks +49% synergy
Generous Patron
50% of 6 decks +49% synergy
Vorinclex, Monstrous Raider
50% of 6 decks +45% synergy
Harbinger of Night
33% of 6 decks +33% synergy
Soul Snuffers
33% of 6 decks +33% synergy
Melira, Sylvok Outcast
33% of 6 decks +33% synergy
Wickerbough Elder
33% of 6 decks +33% synergy
Soul Diviner
33% of 6 decks +33% synergy
Volrath, the Shapestealer
33% of 6 decks +33% synergy
Ezuri, Claw of Progress
33% of 6 decks +33% synergy
Nemata, Primeval Warden
33% of 6 decks +33% synergy
Mycoloth
33% of 6 decks +32% synergy
Mirkwood Bats
33% of 6 decks +31% synergy
Devoted Druid
33% of 6 decks +31% synergy
Blood Artist
33% of 6 decks +31% synergy
Flux Channeler
33% of 6 decks +30% synergy
Zulaport Cutthroat
33% of 6 decks +30% synergy
Spark Double
33% of 6 decks +28% synergy
Kiora's Follower
33% of 6 decks +28% synergy
Thrummingbird
33% of 6 decks +26% synergy
Evolution Sage
33% of 6 decks +25% synergy
Auton Soldier
20% of 5 decks +19% synergy
The Mycotyrant
20% of 5 decks +18% synergy
Smog Elemental
17% of 6 decks +17% synergy
Ascendant Evincar
17% of 6 decks +17% synergy
Spike Cannibal
17% of 6 decks +17% synergy
Plague Mare
17% of 6 decks +17% synergy
Festercreep
17% of 6 decks +17% synergy
Hunter of Eyeblights
17% of 6 decks +17% synergy
Kaervek, the Spiteful
17% of 6 decks +17% synergy
Decimator Beetle
17% of 6 decks +17% synergy
Plague Engineer
17% of 6 decks +17% synergy
Dusk Urchins
17% of 6 decks +17% synergy
Corrosive Mentor
17% of 6 decks +17% synergy
Grim Poppet
17% of 6 decks +17% synergy
Leech Bonder
17% of 6 decks +17% synergy
Thief of Blood
17% of 6 decks +17% synergy
Blightbeetle
17% of 6 decks +17% synergy
Channeler Initiate
17% of 6 decks +16% synergy
Hezrou
17% of 6 decks +16% synergy
Spore Flower
17% of 6 decks +16% synergy
Creakwood Liege
17% of 6 decks +16% synergy
Vampire Hexmage
17% of 6 decks +16% synergy
Sporoloth Ancient
17% of 6 decks +16% synergy
Instants
Grim Affliction
50% of 6 decks +49% synergy
Polymorphist's Jest
50% of 6 decks +49% synergy
Experimental Augury
50% of 6 decks +47% synergy
Double Major
33% of 6 decks +31% synergy
Krosan Grip
33% of 6 decks +28% synergy
Negate
33% of 6 decks +16% synergy
Counterspell
33% of 6 decks -2% synergy
Repulsive Mutation
25% of 4 decks +20% synergy
Ripples of Potential
20% of 5 decks +16% synergy
Grip of Amnesia
17% of 6 decks +17% synergy
Suffocating Fumes
17% of 6 decks +17% synergy
Cut Down
17% of 6 decks +16% synergy
Essence Capture
17% of 6 decks +16% synergy
Sudden Spoiling
17% of 6 decks +16% synergy
Naturalize
17% of 6 decks +16% synergy
Hero's Downfall
17% of 6 decks +16% synergy
Vraska's Fall
17% of 6 decks +15% synergy
Mortality Spear
17% of 6 decks +15% synergy
Prologue to Phyresis
17% of 6 decks +15% synergy
Village Rites
17% of 6 decks +15% synergy
Golgari Charm
17% of 6 decks +15% synergy
Slip Out the Back
17% of 6 decks +14% synergy
Rapid Hybridization
17% of 6 decks +12% synergy
Harrow
17% of 6 decks +7% synergy
Dark Ritual
17% of 6 decks +5% synergy
Arcane Denial
17% of 6 decks +2% synergy
Growth Spiral
17% of 6 decks -2% synergy
Heroic Intervention
17% of 6 decks -4% synergy
Putrefy
17% of 6 decks -7% synergy
Assassin's Trophy
17% of 6 decks -19% synergy
Sorceries
Liliana's Influence
50% of 6 decks +50% synergy
Unnatural Restoration
50% of 6 decks +46% synergy
Rampant Growth
50% of 6 decks +14% synergy
Farseek
50% of 6 decks +7% synergy
Mass Diminish
33% of 6 decks +33% synergy
Incremental Blight
33% of 6 decks +33% synergy
Thirsting Roots
33% of 6 decks +32% synergy
Irenicus's Vile Duplication
33% of 6 decks +32% synergy
Contentious Plan
33% of 6 decks +31% synergy
Feed the Swarm
33% of 6 decks +28% synergy
Toxic Deluge
33% of 6 decks +14% synergy
Nature's Lore
33% of 6 decks +5% synergy
Asinine Antics
20% of 5 decks +20% synergy
Terror Tide
20% of 5 decks +18% synergy
Festering March
17% of 6 decks +17% synergy
Glistening Deluge
17% of 6 decks +17% synergy
Gruesome Realization
17% of 6 decks +17% synergy
Terisiare's Devastation
17% of 6 decks +17% synergy
Aether Snap
17% of 6 decks +17% synergy
Yahenni's Expertise
17% of 6 decks +16% synergy
Smell Fear
17% of 6 decks +16% synergy
Genesis Wave
17% of 6 decks +15% synergy
Infectious Inquiry
17% of 6 decks +15% synergy
Decree of Pain
17% of 6 decks +15% synergy
Croaking Counterpart
17% of 6 decks +15% synergy
Drown in Ichor
17% of 6 decks +14% synergy
Ponder
17% of 6 decks +13% synergy
Diabolic Tutor
17% of 6 decks +13% synergy
Tempt with Discovery
17% of 6 decks +12% synergy
Tezzeret's Gambit
17% of 6 decks +12% synergy
Utility Artifacts
Sword of Truth and Justice
33% of 6 decks +32% synergy
Contagion Engine
33% of 6 decks +32% synergy
Perilous Vault
17% of 6 decks +17% synergy
Kormus Bell
17% of 6 decks +17% synergy
Mind's Eye
17% of 6 decks +17% synergy
Thaumatic Compass
17% of 6 decks +17% synergy
Cauldron of Souls
17% of 6 decks +16% synergy
Eldrazi Monument
17% of 6 decks +16% synergy
Mimic Vat
17% of 6 decks +16% synergy
Thornbite Staff
17% of 6 decks +16% synergy
Ichormoon Gauntlet
17% of 6 decks +16% synergy
Shadowspear
17% of 6 decks +15% synergy
Helm of the Host
17% of 6 decks +15% synergy
Thousand-Year Elixir
17% of 6 decks +15% synergy
Mind Stone
17% of 6 decks +13% synergy
Skullclamp
17% of 6 decks +13% synergy
Wayfarer's Bauble
17% of 6 decks +13% synergy
Expedition Map
17% of 6 decks +13% synergy
Wishclaw Talisman
17% of 6 decks +12% synergy
The Great Henge
17% of 6 decks +10% synergy
Commander's Sphere
17% of 6 decks +8% synergy
Lightning Greaves
17% of 6 decks -7% synergy
Enchantments
Fevered Convulsions
33% of 6 decks +33% synergy
Endless Evil
33% of 6 decks +33% synergy
Phyrexian Arena
33% of 6 decks +27% synergy
The Sea Devils
20% of 5 decks +20% synergy
Night of Souls' Betrayal
17% of 6 decks +17% synergy
Fungal Bloom
17% of 6 decks +17% synergy
Necrogenesis
17% of 6 decks +16% synergy
Aura of Dominion
17% of 6 decks +16% synergy
The First Iroan Games
17% of 6 decks +16% synergy
Song of Freyalise
17% of 6 decks +16% synergy
Black Market
17% of 6 decks +16% synergy
Primal Vigor
17% of 6 decks +15% synergy
Pemmin's Aura
17% of 6 decks +13% synergy
Binding the Old Gods
17% of 6 decks +13% synergy
Doubling Season
17% of 6 decks +10% synergy
Battles
Invasion of Segovia
17% of 6 decks +16% synergy
Planeswalkers
Liliana, Death Wielder
50% of 6 decks +50% synergy
Tyvar, Jubilant Brawler
33% of 6 decks +28% synergy
Freyalise, Llanowar's Fury
17% of 6 decks +16% synergy
Tevesh Szat, Doom of Fools
17% of 6 decks +16% synergy
Kiora, Master of the Depths
17% of 6 decks +15% synergy
Garruk, Cursed Huntsman
17% of 6 decks +15% synergy
Kiora, Behemoth Beckoner
17% of 6 decks +14% synergy
Vraska, Betrayal's Sting
17% of 6 decks +13% synergy
Utility Lands
Nesting Grounds
33% of 6 decks +27% synergy
Urborg, Tomb of Yawgmoth
33% of 6 decks +15% synergy
Detection Tower
17% of 6 decks +17% synergy
Saprazzan Skerry
17% of 6 decks +16% synergy
Peat Bog
17% of 6 decks +16% synergy
Hickory Woodlot
17% of 6 decks +16% synergy
Arcane Lighthouse
17% of 6 decks +16% synergy
Blast Zone
17% of 6 decks +16% synergy
Khalni Garden
17% of 6 decks +16% synergy
Tyrite Sanctum
17% of 6 decks +16% synergy
Tolaria West
17% of 6 decks +15% synergy
Dark Depths
17% of 6 decks +13% synergy
Cabal Coffers
17% of 6 decks +11% synergy
Thespian's Stage
17% of 6 decks +10% synergy
Rogue's Passage
17% of 6 decks -1% synergy
Yavimaya, Cradle of Growth
17% of 6 decks -3% synergy
Reliquary Tower
17% of 6 decks -14% synergy
Mana Artifacts
Arcane Signet
83% of 6 decks +12% synergy
Sol Ring
83% of 6 decks +1% synergy
Replicating Ring
33% of 6 decks +30% synergy
Astral Cornucopia
33% of 6 decks +30% synergy
Everflowing Chalice
33% of 6 decks +30% synergy
Pyramid of the Pantheon
17% of 6 decks +17% synergy
Paradise Mantle
17% of 6 decks +16% synergy
Chromatic Lantern
17% of 6 decks +9% synergy
Thought Vessel
17% of 6 decks +8% synergy
Lands
Command Tower
100% of 6 decks +10% synergy
Hinterland Harbor
67% of 6 decks +26% synergy
Opulent Palace
67% of 6 decks +16% synergy
Vivid Marsh
50% of 6 decks +49% synergy
Vivid Creek
50% of 6 decks +49% synergy
Vivid Grove
50% of 6 decks +49% synergy
Sunken Hollow
50% of 6 decks +15% synergy
Zagoth Triome
50% of 6 decks +10% synergy
Gemstone Mine
33% of 6 decks +32% synergy
Shipwreck Marsh
33% of 6 decks +17% synergy
Dreamroot Cascade
33% of 6 decks +10% synergy
Terramorphic Expanse
33% of 6 decks +9% synergy
Evolving Wilds
33% of 6 decks +5% synergy
Woodland Cemetery
33% of 6 decks -7% synergy
Exotic Orchard
33% of 6 decks -21% synergy
Tendo Ice Bridge
17% of 6 decks +17% synergy
Cabaretti Courtyard
17% of 6 decks +16% synergy
Mirrex
17% of 6 decks +16% synergy
River of Tears
17% of 6 decks +16% synergy
Maestros Theater
17% of 6 decks +15% synergy
Obscura Storefront
17% of 6 decks +15% synergy
Riveteers Overlook
17% of 6 decks +15% synergy
Brokers Hideout
17% of 6 decks +15% synergy
Botanical Sanctum
17% of 6 decks +13% synergy
Blooming Marsh
17% of 6 decks +13% synergy
Blighted Woodland
17% of 6 decks +13% synergy
Woodland Chasm
17% of 6 decks +11% synergy
Tangled Islet
17% of 6 decks +11% synergy
Haunted Mire
17% of 6 decks +10% synergy
Twilight Mire
17% of 6 decks +8% synergy
City of Brass
17% of 6 decks +7% synergy
Fetid Pools
17% of 6 decks +6% synergy
Flooded Grove
17% of 6 decks +5% synergy
Myriad Landscape
17% of 6 decks +2% synergy
Deathcap Glade
17% of 6 decks +2% synergy
Fabled Passage
17% of 6 decks +2% synergy
Morphic Pool
17% of 6 decks -10% synergy
Llanowar Wastes
17% of 6 decks -13% synergy
Drowned Catacomb
17% of 6 decks -15% synergy
Polluted Delta
17% of 6 decks -17% synergy
Rejuvenating Springs
17% of 6 decks -17% synergy
Misty Rainforest
17% of 6 decks -18% synergy
Verdant Catacombs
17% of 6 decks -18% synergy
Watery Grave
17% of 6 decks -27% synergy
Breeding Pool
17% of 6 decks -28% synergy
Overgrown Tomb
17% of 6 decks -29% synergy