Primal Prayers
Decoction Module
Cavern Harpy

   Prerequisites

What do I need to start this combo?
Cavern Harpy in hand.
Primal Prayers and Decoction Module on the battlefield.
You have at least e or enough mana to cast Cavern Harpy

   Steps

How does this combo work?
1
Cast Cavern Harpy by paying e due to Primal Prayers, if able, or by paying its mana cost.
2
When Cavern Harpy enters the battlefield, it and Decoction Module trigger.
3
Resolve the Decoction Module trigger, causing you to get e.
4
Resolve the Cavern Harpy trigger, returning it from the battlefield to your hand.
5
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite storm count
Yarok, the Desecrated
0.1%inclusion6 decks9.65K decks
Cazur, Ruthless Stalker // Ukkima, Stalking Shadow
0.1%inclusion2 decks3.76K decks
Tevesh Szat, Doom of Fools // Thrasios, Triton Hero
0.1%inclusion2 decks2.05K decks
Jenson Carthalion, Druid Exile
0.1%inclusion2 decks2.19K decks
Niv-Mizzet, Guildpact
0.0%inclusion1 decks3.03K decks
Atraxa, Grand Unifier
0.0%inclusion1 decks13K decks
Thrasios, Triton Hero // Tymna the Weaver
0.0%inclusion1 decks8.43K decks
Zaxara, the Exemplary
0.0%inclusion1 decks13.8K decks
Esika, God of the Tree
0.0%inclusion1 decks17.9K decks
Glarb, Calamity's Augur
0.0%inclusion1 decks16.9K decks
Rukarumel, Biologist
0.0%inclusion1 decks3.21K decks
Go-Shintai of Life's Origin
0.0%inclusion1 decks15.5K decks
Ramos, Dragon Engine
0.0%inclusion1 decks8.81K decks
Garth One-Eye
0.0%inclusion1 decks3.99K decks
High Synergy Cards
Guide of Souls
100%inclusion10 decks10 decks
98%synergy
Rogue Refiner
86%inclusion19 decks22 decks
86%synergy
Chthonian Nightmare
82%inclusion18 decks22 decks
80%synergy
Wrath of the Skies
60%inclusion6 decks10 decks
60%synergy
Imperial Recruiter
63%inclusion5 decks8 decks
58%synergy
Aether Channeler
50%inclusion11 decks22 decks
48%synergy
Recruiter of the Guard
50%inclusion5 decks10 decks
47%synergy
Uro, Titan of Nature's Wrath
50%inclusion11 decks22 decks
45%synergy
Noble Hierarch
60%inclusion6 decks10 decks
44%synergy
Volatile Stormdrake
45%inclusion10 decks22 decks
44%synergy
Top Cards
Ignoble Hierarch
63%inclusion5 decks8 decks
38%synergy
Eternal Witness
55%inclusion12 decks22 decks
37%synergy
Eladamri's Call
50%inclusion5 decks10 decks
41%synergy
Baleful Strix
50%inclusion11 decks22 decks
37%synergy
Birds of Paradise
50%inclusion11 decks22 decks
22%synergy
Arcane Denial
45%inclusion10 decks22 decks
25%synergy
Assassin's Trophy
45%inclusion10 decks22 decks
15%synergy
Nissa, Worldsoul Speaker
43%inclusion6 decks14 decks
42%synergy
Aluren
41%inclusion9 decks22 decks
41%synergy
Tune the Narrative
41%inclusion9 decks22 decks
40%synergy
Game Changers
Enlightened Tutor
60%inclusion6 decks10 decks
44%synergy
Demonic Tutor
36%inclusion8 decks22 decks
17%synergy
Mox Diamond
27%inclusion6 decks22 decks
23%synergy
Chrome Mox
27%inclusion6 decks22 decks
21%synergy
Force of Will
27%inclusion6 decks22 decks
17%synergy
Worldly Tutor
27%inclusion6 decks22 decks
15%synergy
Vampiric Tutor
27%inclusion6 decks22 decks
12%synergy
Thassa's Oracle
23%inclusion5 decks22 decks
16%synergy
Orcish Bowmasters
18%inclusion4 decks22 decks
9%synergy
Survival of the Fittest
14%inclusion3 decks22 decks
12%synergy
Creatures
Deathrite Shaman
41%inclusion9 decks22 decks
30%synergy
Esper Sentinel
40%inclusion4 decks10 decks
21%synergy
Burning-Tree Emissary
38%inclusion3 decks8 decks
37%synergy
Acererak the Archlich
36%inclusion8 decks22 decks
36%synergy
Coiling Oracle
36%inclusion8 decks22 decks
30%synergy
Aether Theorist
32%inclusion7 decks22 decks
32%synergy
Roil Cartographer
32%inclusion7 decks22 decks
31%synergy
Aetherstorm Roc
30%inclusion3 decks10 decks
30%synergy
Riddle Gate Gargoyle
30%inclusion3 decks10 decks
29%synergy
Whitemane Lion
30%inclusion3 decks10 decks
29%synergy
Moon-Blessed Cleric
30%inclusion3 decks10 decks
28%synergy
Metastatic Evangel
30%inclusion3 decks10 decks
28%synergy
Ranger-Captain of Eos
30%inclusion3 decks10 decks
26%synergy
Aether Poisoner
27%inclusion6 decks22 decks
27%synergy
Glint-Sleeve Siphoner
27%inclusion6 decks22 decks
27%synergy
Greenbelt Rampager
27%inclusion6 decks22 decks
27%synergy
Tempest Harvester
27%inclusion6 decks22 decks
27%synergy
Servant of the Conduit
27%inclusion6 decks22 decks
27%synergy
Shrieking Drake
27%inclusion6 decks22 decks
27%synergy
Ice-Fang Coatl
27%inclusion6 decks22 decks
26%synergy
Delighted Halfling
27%inclusion6 decks22 decks
15%synergy
Dour Port-Mage
25%inclusion5 decks20 decks
23%synergy
Parasitic Strix
23%inclusion5 decks22 decks
23%synergy
Sage of Shaila's Claim
23%inclusion5 decks22 decks
23%synergy
Architect of the Untamed
23%inclusion5 decks22 decks
22%synergy
Priest of Gix
23%inclusion5 decks22 decks
22%synergy
Ukkima, Stalking Shadow
23%inclusion5 decks22 decks
22%synergy
Spellseeker
23%inclusion5 decks22 decks
19%synergy
Clement, the Worrywort
20%inclusion4 decks20 decks
19%synergy
Janjeet Sentry
18%inclusion4 decks22 decks
18%synergy
Thriving Turtle
18%inclusion4 decks22 decks
18%synergy
Shielded Aether Thief
18%inclusion4 decks22 decks
18%synergy
Dream Stalker
18%inclusion4 decks22 decks
18%synergy
Demon of Dark Schemes
18%inclusion4 decks22 decks
18%synergy
Flesh Duplicate
18%inclusion4 decks22 decks
17%synergy
Cloud of Faeries
18%inclusion4 decks22 decks
16%synergy
Elvish Spirit Guide
18%inclusion4 decks22 decks
14%synergy
Destiny Spinner
18%inclusion4 decks22 decks
14%synergy
Wood Elves
18%inclusion4 decks22 decks
13%synergy
Displacer Kitten
18%inclusion4 decks22 decks
13%synergy
Thriving Rats
14%inclusion3 decks22 decks
14%synergy
Longtusk Cub
14%inclusion3 decks22 decks
14%synergy
Minister of Inquiries
14%inclusion3 decks22 decks
14%synergy
Aether Swooper
14%inclusion3 decks22 decks
14%synergy
Electrostatic Pummeler
14%inclusion3 decks22 decks
14%synergy
Aetherwind Basker
14%inclusion3 decks22 decks
13%synergy
Aethertide Whale
14%inclusion3 decks22 decks
13%synergy
Quickling
14%inclusion3 decks22 decks
13%synergy
Man-o'-War
14%inclusion3 decks22 decks
13%synergy
Dimir House Guard
14%inclusion3 decks22 decks
13%synergy
Instants
Abrupt Decay
41%inclusion9 decks22 decks
31%synergy
Swords to Plowshares
40%inclusion4 decks10 decks
-22%synergy
Rush of Inspiration
38%inclusion3 decks8 decks
36%synergy
An Offer You Can't Refuse
36%inclusion8 decks22 decks
12%synergy
Counterspell
36%inclusion8 decks22 decks
-6%synergy
Glimmer of Genius
27%inclusion6 decks22 decks
27%synergy
Flusterstorm
27%inclusion6 decks22 decks
20%synergy
Fierce Guardianship
27%inclusion6 decks22 decks
9%synergy
Aether Spike
23%inclusion5 decks22 decks
22%synergy
Muddle the Mixture
23%inclusion5 decks22 decks
18%synergy
Noxious Revival
23%inclusion5 decks22 decks
18%synergy
Chord of Calling
23%inclusion5 decks22 decks
17%synergy
Mental Misstep
23%inclusion5 decks22 decks
17%synergy
Force of Negation
23%inclusion5 decks22 decks
14%synergy
Deadly Rollick
23%inclusion5 decks22 decks
10%synergy
Heroic Intervention
23%inclusion5 decks22 decks
-8%synergy
Swan Song
18%inclusion4 decks22 decks
1%synergy
Planar Incision
14%inclusion3 decks22 decks
12%synergy
Delay
14%inclusion3 decks22 decks
12%synergy
Force of Vigor
14%inclusion3 decks22 decks
10%synergy
Brain Freeze
14%inclusion3 decks22 decks
10%synergy
Mindbreak Trap
14%inclusion3 decks22 decks
9%synergy
Veil of Summer
14%inclusion3 decks22 decks
8%synergy
Pact of Negation
14%inclusion3 decks22 decks
7%synergy
Growth Spiral
14%inclusion3 decks22 decks
-7%synergy
Sorceries
Neoform
41%inclusion9 decks22 decks
37%synergy
Jolted Awake
40%inclusion4 decks10 decks
39%synergy
Live Fast
32%inclusion7 decks22 decks
32%synergy
Eldritch Evolution
32%inclusion7 decks22 decks
27%synergy
Attune with Aether
27%inclusion6 decks22 decks
27%synergy
Three Visits
27%inclusion6 decks22 decks
3%synergy
Farseek
27%inclusion6 decks22 decks
-8%synergy
Finale of Devastation
23%inclusion5 decks22 decks
15%synergy
Nature's Lore
23%inclusion5 decks22 decks
-9%synergy
Cultivate
23%inclusion5 decks22 decks
-20%synergy
Unearth
18%inclusion4 decks22 decks
15%synergy
Diabolic Tutor
18%inclusion4 decks22 decks
12%synergy
Toxic Deluge
18%inclusion4 decks22 decks
0%synergy
Die Young
14%inclusion3 decks22 decks
14%synergy
Tendrils of Agony
14%inclusion3 decks22 decks
13%synergy
Lórien Revealed
14%inclusion3 decks22 decks
11%synergy
Grim Tutor
14%inclusion3 decks22 decks
9%synergy
Treasure Cruise
14%inclusion3 decks22 decks
9%synergy
Reanimate
14%inclusion3 decks22 decks
-5%synergy
Kodama's Reach
14%inclusion3 decks22 decks
-14%synergy
Utility Artifacts
Izzet Generatorium
38%inclusion3 decks8 decks
36%synergy
Cloudstone Curio
36%inclusion8 decks22 decks
36%synergy
Aetherflux Reservoir
23%inclusion5 decks22 decks
19%synergy
Panharmonicon
23%inclusion5 decks22 decks
19%synergy
Aetherflux Conduit
20%inclusion3 decks15 decks
20%synergy
Aetherworks Marvel
18%inclusion4 decks22 decks
18%synergy
Lightning Greaves
18%inclusion4 decks22 decks
-7%synergy
Woodweaver's Puzzleknot
14%inclusion3 decks22 decks
14%synergy
Glassblower's Puzzleknot
14%inclusion3 decks22 decks
14%synergy
The One Ring
14%inclusion3 decks22 decks
5%synergy
Enchantments
Aether Revolt
38%inclusion3 decks8 decks
37%synergy
Sylvan Library
36%inclusion8 decks22 decks
27%synergy
Static Prison
30%inclusion3 decks10 decks
30%synergy
Smothering Tithe
30%inclusion3 decks10 decks
8%synergy
Rhystic Study
27%inclusion6 decks22 decks
3%synergy
Virtue of Knowledge
23%inclusion5 decks22 decks
21%synergy
Growing Rites of Itlimoc
23%inclusion5 decks22 decks
17%synergy
Mystic Remora
23%inclusion5 decks22 decks
6%synergy
Guardian Project
14%inclusion3 decks22 decks
6%synergy
Utility Lands
Otawara, Soaring City
41%inclusion9 decks22 decks
24%synergy
Boseiju, Who Endures
41%inclusion9 decks22 decks
22%synergy
Yavimaya, Cradle of Growth
32%inclusion7 decks22 decks
23%synergy
Urborg, Tomb of Yawgmoth
27%inclusion6 decks22 decks
18%synergy
Mistrise Village
25%inclusion3 decks12 decks
17%synergy
HELIOS One
23%inclusion5 decks22 decks
22%synergy
Gaea's Cradle
14%inclusion3 decks22 decks
8%synergy
Shifting Woodland
14%inclusion3 decks22 decks
7%synergy
Ancient Tomb
14%inclusion3 decks22 decks
4%synergy
Mana Artifacts
Sol Ring
82%inclusion18 decks22 decks
-2%synergy
Arcane Signet
68%inclusion15 decks22 decks
-4%synergy
Solar Transformer
32%inclusion7 decks22 decks
31%synergy
Lotus Petal
23%inclusion5 decks22 decks
16%synergy
Conversion Apparatus
18%inclusion4 decks22 decks
18%synergy
Talisman of Resilience
18%inclusion4 decks22 decks
5%synergy
Talisman of Curiosity
18%inclusion4 decks22 decks
5%synergy
Fellwar Stone
18%inclusion4 decks22 decks
-2%synergy
Talisman of Dominance
18%inclusion4 decks22 decks
-15%synergy
Jeweled Lotus
14%inclusion3 decks22 decks
12%synergy
Mox Opal
14%inclusion3 decks22 decks
9%synergy
Mana Vault
14%inclusion3 decks22 decks
8%synergy
Chromatic Lantern
14%inclusion3 decks22 decks
5%synergy
Lands
Command Tower
95%inclusion21 decks22 decks
21%synergy
Verdant Catacombs
77%inclusion17 decks22 decks
66%synergy
Misty Rainforest
77%inclusion17 decks22 decks
66%synergy
Polluted Delta
77%inclusion17 decks22 decks
65%synergy
Breeding Pool
77%inclusion17 decks22 decks
36%synergy
Watery Grave
73%inclusion16 decks22 decks
32%synergy
Temple Garden
70%inclusion7 decks10 decks
31%synergy
Overgrown Tomb
68%inclusion15 decks22 decks
28%synergy
Windswept Heath
64%inclusion14 decks22 decks
53%synergy
Flooded Strand
64%inclusion14 decks22 decks
52%synergy
Taiga
63%inclusion5 decks8 decks
50%synergy
Savannah
60%inclusion6 decks10 decks
47%synergy
Hallowed Fountain
60%inclusion6 decks10 decks
20%synergy
Marsh Flats
59%inclusion13 decks22 decks
48%synergy
Exotic Orchard
59%inclusion13 decks22 decks
23%synergy
Scalding Tarn
55%inclusion12 decks22 decks
44%synergy
Zagoth Triome
55%inclusion12 decks22 decks
26%synergy
Wooded Foothills
50%inclusion11 decks22 decks
39%synergy
Bloodstained Mire
50%inclusion11 decks22 decks
39%synergy
Badlands
50%inclusion4 decks8 decks
37%synergy
Scrubland
50%inclusion5 decks10 decks
36%synergy
Volcanic Island
50%inclusion4 decks8 decks
36%synergy
Tundra
50%inclusion5 decks10 decks
36%synergy
Aether Hub
45%inclusion10 decks22 decks
45%synergy
City of Brass
45%inclusion10 decks22 decks
38%synergy
Woodland Cemetery
45%inclusion10 decks22 decks
14%synergy
Morphic Pool
41%inclusion9 decks22 decks
16%synergy
Rejuvenating Springs
41%inclusion9 decks22 decks
14%synergy
Drowned Catacomb
41%inclusion9 decks22 decks
12%synergy
Hinterland Harbor
41%inclusion9 decks22 decks
9%synergy
Godless Shrine
40%inclusion4 decks10 decks
-1%synergy
Plateau
38%inclusion3 decks8 decks
26%synergy
Sacred Foundry
38%inclusion3 decks8 decks
1%synergy
Blood Crypt
38%inclusion3 decks8 decks
0%synergy
Steam Vents
38%inclusion3 decks8 decks
0%synergy
Stomping Ground
38%inclusion3 decks8 decks
-3%synergy
Mana Confluence
36%inclusion8 decks22 decks
29%synergy
Dreamroot Cascade
36%inclusion8 decks22 decks
15%synergy
Undergrowth Stadium
36%inclusion8 decks22 decks
13%synergy
Arid Mesa
32%inclusion7 decks22 decks
22%synergy
Bayou
32%inclusion7 decks22 decks
18%synergy
Tropical Island
32%inclusion7 decks22 decks
18%synergy
Shipwreck Marsh
32%inclusion7 decks22 decks
13%synergy
Llanowar Wastes
27%inclusion6 decks22 decks
1%synergy
Yavimaya Coast
27%inclusion6 decks22 decks
0%synergy
Deathcap Glade
23%inclusion5 decks22 decks
10%synergy
Underground Sea
23%inclusion5 decks22 decks
8%synergy
Underground River
23%inclusion5 decks22 decks
0%synergy
Opulent Palace
23%inclusion5 decks22 decks
-5%synergy
Sunken Hollow
23%inclusion5 decks22 decks
-11%synergy