Primal Prayers + Guide of Souls + Cavern Harpy
Primal Prayers
Guide of Souls
Cavern Harpy
Requires
Primal Prayers must be on the battlefield.
Guide of Souls must be on the battlefield.
Cavern Harpy must be in hand.
You have at least 
or enough mana to cast Cavern Harpy
or enough mana to cast Cavern Harpy
Steps
- Cast Cavern Harpy by paying due to Primal Prayers, if able, or by paying its mana cost.
- When Cavern Harpy enters the battlefield, it and Guide of Souls trigger.
- Resolve the Guide of Souls trigger, causing you to get and gain 1 life.
- Resolve the Cavern Harpy trigger, returning it from the battlefield to your hand.
- Repeat.
Results
Infinite energy counters. Infinite LTB. Infinite ETB. Infinite lifegain triggers. Infinite lifegain. Infinite storm count.
Thrasios, Triton Hero // Tymna the Weaver
0.07% of 5622 decks
4 decks
Garth One-Eye
0.02% of 4123 decks
1 decks
Go-Shintai of Life's Origin
0.01% of 14683 decks
1 decks
Ulalek, Fused Atrocity
0.01% of 10386 decks
1 decks
Niv-Mizzet, Guildpact
0.04% of 2260 decks
1 decks
Rukarumel, Biologist
0.04% of 2789 decks
1 decks
Atraxa, Grand Unifier
0.01% of 14209 decks
1 decks
New Cards
Floodfarm Verge
100% of 1 decks
+79% synergy
Hushwood Verge
100% of 1 decks
+78% synergy
Thornspire Verge
100% of 1 decks
+80% synergy
Enduring Courage
100% of 1 decks
+90% synergy
Valgavoth's Lair
50% of 2 decks
+45% synergy
High Synergy Cards
Volatile Stormdrake
60% of 10 decks
+56% synergy
Thassa's Oracle
60% of 10 decks
+53% synergy
Enlightened Tutor
70% of 10 decks
+52% synergy
Rogue Refiner
50% of 10 decks
+50% synergy
Decoction Module
50% of 10 decks
+50% synergy
Recruiter of the Guard
50% of 10 decks
+47% synergy
Chthonian Nightmare
50% of 10 decks
+47% synergy
Worldly Tutor
60% of 10 decks
+46% synergy
Bloom Tender
50% of 10 decks
+42% synergy
Shrieking Drake
40% of 10 decks
+39% synergy
Top Cards
Orcish Bowmasters
50% of 10 decks
+39% synergy
Deathrite Shaman
50% of 10 decks
+38% synergy
Eternal Witness
50% of 10 decks
+29% synergy
Birds of Paradise
50% of 10 decks
+23% synergy
Wrath of the Skies
40% of 10 decks
+39% synergy
Mox Diamond
40% of 10 decks
+36% synergy
Neoform
40% of 10 decks
+35% synergy
Chrome Mox
40% of 10 decks
+34% synergy
Force of Negation
40% of 10 decks
+31% synergy
Eladamri's Call
40% of 10 decks
+29% synergy
Creatures
Noble Hierarch
40% of 10 decks
+24% synergy
Esper Sentinel
40% of 10 decks
+19% synergy
Dour Port-Mage
33% of 3 decks
+27% synergy
Whitemane Lion
30% of 10 decks
+29% synergy
Moon-Blessed Cleric
30% of 10 decks
+28% synergy
Flesh Duplicate
30% of 10 decks
+27% synergy
Metastatic Evangel
30% of 10 decks
+27% synergy
Elvish Spirit Guide
30% of 10 decks
+27% synergy
Satoru, the Infiltrator
30% of 10 decks
+26% synergy
Grand Abolisher
30% of 10 decks
+21% synergy
Baleful Strix
30% of 10 decks
+17% synergy
Avacyn's Pilgrim
30% of 10 decks
+15% synergy
Kutzil, Malamet Exemplar
30% of 10 decks
+11% synergy
Darkstar Augur
25% of 4 decks
+23% synergy
Pond Prophet
25% of 4 decks
+21% synergy
Valley Floodcaller
25% of 4 decks
+19% synergy
Riddle Gate Gargoyle
22% of 9 decks
+21% synergy
Morselhoarder
20% of 5 decks
+20% synergy
Aethertorch Renegade
20% of 5 decks
+20% synergy
Greenbelt Rampager
20% of 10 decks
+20% synergy
Kor Skyfisher
20% of 10 decks
+20% synergy
Dream Stalker
20% of 10 decks
+20% synergy
Radiant Performer
20% of 5 decks
+20% synergy
Deputy of Acquittals
20% of 10 decks
+20% synergy
Nivix Guildmage
20% of 5 decks
+20% synergy
Tazri, Stalwart Survivor
20% of 5 decks
+20% synergy
Conduit Goblin
20% of 5 decks
+20% synergy
Bringer of the White Dawn
20% of 5 decks
+20% synergy
Burning-Tree Emissary
20% of 5 decks
+20% synergy
Fleetfoot Panther
20% of 10 decks
+20% synergy
Man-o'-War
20% of 10 decks
+20% synergy
Yore-Tiller Nephilim
20% of 5 decks
+19% synergy
Niambi, Esteemed Speaker
20% of 10 decks
+19% synergy
Reidane, God of the Worthy
20% of 10 decks
+19% synergy
Whirler Virtuoso
20% of 5 decks
+19% synergy
Acererak the Archlich
20% of 10 decks
+19% synergy
Ukkima, Stalking Shadow
20% of 10 decks
+19% synergy
Academy Rector
20% of 10 decks
+19% synergy
Synth Eradicator
20% of 5 decks
+19% synergy
Mishra, Eminent One
20% of 5 decks
+19% synergy
Roil Cartographer
20% of 10 decks
+19% synergy
Satya, Aetherflux Genius
20% of 5 decks
+18% synergy
Rukarumel, Biologist
20% of 5 decks
+18% synergy
Squee, the Immortal
20% of 5 decks
+18% synergy
Dark Confidant
20% of 10 decks
+18% synergy
Krenko, Mob Boss
20% of 5 decks
+18% synergy
Dr. Madison Li
20% of 5 decks
+17% synergy
Lurrus of the Dream-Den
20% of 10 decks
+17% synergy
Liberty Prime, Recharged
20% of 5 decks
+17% synergy
Aven Interrupter
20% of 10 decks
+17% synergy
Instants
Vampiric Tutor
60% of 10 decks
+42% synergy
Rush of Inspiration
40% of 5 decks
+38% synergy
Force of Will
40% of 10 decks
+29% synergy
Swan Song
40% of 10 decks
+23% synergy
Fierce Guardianship
40% of 10 decks
+22% synergy
An Offer You Can't Refuse
40% of 10 decks
+19% synergy
Swords to Plowshares
40% of 10 decks
-23% synergy
Mindbreak Trap
30% of 10 decks
+26% synergy
Tainted Pact
30% of 10 decks
+26% synergy
Chord of Calling
30% of 10 decks
+24% synergy
Mental Misstep
30% of 10 decks
+24% synergy
Silence
30% of 10 decks
+24% synergy
Flusterstorm
30% of 10 decks
+23% synergy
Deadly Rollick
30% of 10 decks
+19% synergy
Glimmer of Genius
20% of 10 decks
+20% synergy
Galvanic Discharge
20% of 5 decks
+19% synergy
Tune the Narrative
20% of 10 decks
+19% synergy
Electrosiphon
20% of 5 decks
+18% synergy
Demonic Consultation
20% of 10 decks
+16% synergy
Noxious Revival
20% of 10 decks
+14% synergy
Pact of Negation
20% of 10 decks
+13% synergy
Crop Rotation
20% of 10 decks
+10% synergy
Bedevil
20% of 5 decks
+6% synergy
Dovin's Veto
20% of 10 decks
+1% synergy
Boros Charm
20% of 5 decks
-5% synergy
Counterspell
20% of 10 decks
-23% synergy
Aether Spike
11% of 9 decks
+10% synergy
Banishing Knack
10% of 10 decks
+10% synergy
Turn Aside
10% of 10 decks
+9% synergy
Kaya's Guile
10% of 10 decks
+9% synergy
Realms Uncharted
10% of 10 decks
+9% synergy
Hindering Light
10% of 10 decks
+9% synergy
Summoner's Pact
10% of 10 decks
+9% synergy
Teferi's Time Twist
10% of 10 decks
+9% synergy
Planar Incision
10% of 10 decks
+9% synergy
Shared Summons
10% of 10 decks
+9% synergy
Flicker of Fate
10% of 10 decks
+9% synergy
Stinging Study
10% of 10 decks
+9% synergy
Null Elemental Blast
10% of 10 decks
+8% synergy
Cryptic Command
10% of 10 decks
+8% synergy
Essence Flux
10% of 10 decks
+8% synergy
Mana Leak
10% of 10 decks
+8% synergy
Miscast
10% of 10 decks
+8% synergy
Countersquall
10% of 10 decks
+8% synergy
Delay
10% of 10 decks
+7% synergy
Momentary Blink
10% of 10 decks
+7% synergy
Cloudshift
10% of 10 decks
+7% synergy
Flare of Denial
10% of 10 decks
+6% synergy
Chain of Vapor
10% of 10 decks
+6% synergy
Dig Through Time
10% of 10 decks
+5% synergy
Sorceries
Demonic Tutor
60% of 10 decks
+38% synergy
Jolted Awake
33% of 9 decks
+32% synergy
Live Fast
20% of 10 decks
+20% synergy
Irencrag Feat
20% of 5 decks
+20% synergy
Wheel of Potential
20% of 5 decks
+19% synergy
Reckless Handling
20% of 5 decks
+18% synergy
Unearth
20% of 10 decks
+17% synergy
Beseech the Mirror
20% of 10 decks
+16% synergy
Eldritch Evolution
20% of 10 decks
+15% synergy
Idyllic Tutor
20% of 10 decks
+15% synergy
Imperial Seal
20% of 10 decks
+14% synergy
Finale of Devastation
20% of 10 decks
+12% synergy
Explore
20% of 10 decks
+11% synergy
Damn
20% of 10 decks
+3% synergy
Nature's Lore
20% of 10 decks
-12% synergy
Library of Lat-Nam
10% of 10 decks
+10% synergy
Attune with Aether
10% of 10 decks
+10% synergy
Behold the Beyond
10% of 10 decks
+10% synergy
Abuelo's Awakening
10% of 10 decks
+10% synergy
Altar of Bone
10% of 10 decks
+10% synergy
Threats Undetected
10% of 10 decks
+9% synergy
Sylvan Tutor
10% of 10 decks
+9% synergy
Karn's Temporal Sundering
10% of 10 decks
+9% synergy
Yawgmoth's Will
10% of 10 decks
+9% synergy
Genesis Wave
10% of 10 decks
+8% synergy
Natural Order
10% of 10 decks
+8% synergy
Unmarked Grave
10% of 10 decks
+7% synergy
Dig Up
10% of 10 decks
+7% synergy
Sylvan Scrying
10% of 10 decks
+7% synergy
Lórien Revealed
10% of 10 decks
+6% synergy
Grim Tutor
10% of 10 decks
+5% synergy
Ringsight
10% of 10 decks
+5% synergy
Insatiable Avarice
10% of 10 decks
+5% synergy
Buried Alive
10% of 10 decks
+4% synergy
Gitaxian Probe
10% of 10 decks
+4% synergy
Fabricate
10% of 10 decks
+4% synergy
Green Sun's Zenith
10% of 10 decks
+4% synergy
Diabolic Tutor
10% of 10 decks
+4% synergy
Sevinne's Reclamation
10% of 10 decks
+3% synergy
Villainous Wealth
10% of 10 decks
+2% synergy
Night's Whisper
10% of 10 decks
+1% synergy
Bala Ged Recovery
10% of 10 decks
+1% synergy
Victimize
10% of 10 decks
-2% synergy
Reanimate
10% of 10 decks
-6% synergy
Toxic Deluge
10% of 10 decks
-7% synergy
Three Visits
10% of 10 decks
-15% synergy
Kodama's Reach
10% of 10 decks
-22% synergy
Farseek
10% of 10 decks
-24% synergy
Cultivate
10% of 10 decks
-36% synergy
Utility Artifacts
Izzet Generatorium
40% of 5 decks
+37% synergy
The One Ring
30% of 10 decks
+21% synergy
Phyrexian Ironworks
20% of 5 decks
+20% synergy
Plasma Caster
20% of 5 decks
+19% synergy
Cloudstone Curio
20% of 10 decks
+19% synergy
Aether Refinery
20% of 5 decks
+19% synergy
Birthing Pod
20% of 10 decks
+17% synergy
Aetherflux Reservoir
20% of 10 decks
+16% synergy
Door to Nothingness
20% of 5 decks
+16% synergy
Panharmonicon
20% of 10 decks
+16% synergy
Bespoke Battlewagon
11% of 9 decks
+10% synergy
Ward of Bones
10% of 10 decks
+10% synergy
Mindslaver
10% of 10 decks
+10% synergy
Aetherworks Marvel
10% of 10 decks
+10% synergy
Gonti's Aether Heart
10% of 10 decks
+10% synergy
Idol of False Gods
10% of 10 decks
+9% synergy
Realmbreaker, the Invasion Tree
10% of 10 decks
+9% synergy
Defense Grid
10% of 10 decks
+9% synergy
Automated Assembly Line
10% of 10 decks
+9% synergy
Imposter Mech
10% of 10 decks
+8% synergy
Maskwood Nexus
10% of 10 decks
+7% synergy
Phyrexian Altar
10% of 10 decks
+6% synergy
Wishclaw Talisman
10% of 10 decks
+5% synergy
Herald's Horn
10% of 10 decks
+4% synergy
Ashnod's Altar
10% of 10 decks
+2% synergy
Skullclamp
10% of 10 decks
-2% synergy
Lightning Greaves
10% of 10 decks
-15% synergy
Enchantments
Aether Revolt
40% of 5 decks
+39% synergy
Impact Tremors
40% of 5 decks
+31% synergy
Rhystic Study
40% of 10 decks
+12% synergy
Aluren
30% of 10 decks
+30% synergy
Static Prison
30% of 10 decks
+29% synergy
Survival of the Fittest
30% of 10 decks
+28% synergy
Sylvan Library
30% of 10 decks
+18% synergy
Mystic Remora
30% of 10 decks
+12% synergy
Power of Fire
20% of 5 decks
+20% synergy
Scurry of Gremlins
20% of 5 decks
+19% synergy
Carpet of Flowers
20% of 10 decks
+16% synergy
Shadow in the Warp
20% of 5 decks
+16% synergy
Goblin Bombardment
20% of 5 decks
+14% synergy
Warleader's Call
20% of 5 decks
+9% synergy
Wild Growth
20% of 10 decks
+9% synergy
Leyline of the Guildpact
20% of 5 decks
-4% synergy
Smothering Tithe
20% of 10 decks
-5% synergy
Sinking Feeling
10% of 10 decks
+10% synergy
Parallel Thoughts
10% of 10 decks
+10% synergy
Sadistic Glee
10% of 10 decks
+10% synergy
Journey to Nowhere
10% of 10 decks
+10% synergy
Presence of Gond
10% of 10 decks
+10% synergy
Earthcraft
10% of 10 decks
+9% synergy
Monastery Siege
10% of 10 decks
+9% synergy
Arcane Adaptation
10% of 10 decks
+9% synergy
Echoes of Eternity
10% of 10 decks
+8% synergy
Court of Ardenvale
10% of 10 decks
+8% synergy
Touch the Spirit Realm
10% of 10 decks
+8% synergy
Intruder Alarm
10% of 10 decks
+8% synergy
Cleric Class
10% of 10 decks
+7% synergy
Concordant Crossroads
10% of 10 decks
+7% synergy
Omniscience
10% of 10 decks
+7% synergy
Training Grounds
10% of 10 decks
+7% synergy
Kozilek's Unsealing
10% of 10 decks
+7% synergy
Virtue of Knowledge
10% of 10 decks
+7% synergy
Curiosity
10% of 10 decks
+6% synergy
Land Tax
10% of 10 decks
+3% synergy
Utopia Sprawl
10% of 10 decks
+2% synergy
Sterling Grove
10% of 10 decks
+2% synergy
Exploration
10% of 10 decks
+2% synergy
Planeswalkers
Oko, Thief of Crowns
20% of 10 decks
+14% synergy
Teferi, Time Raveler
20% of 10 decks
+13% synergy
Aminatou, the Fateshifter
10% of 10 decks
+7% synergy
Utility Lands
Gaea's Cradle
40% of 10 decks
+34% synergy
Shifting Woodland
40% of 10 decks
+30% synergy
Boseiju, Who Endures
30% of 10 decks
+10% synergy
HELIOS One
10% of 10 decks
+9% synergy
Eldrazi Temple
10% of 10 decks
+9% synergy
Echoing Deeps
10% of 10 decks
+9% synergy
Dark Depths
10% of 10 decks
+9% synergy
Tolaria West
10% of 10 decks
+9% synergy
Cascading Cataracts
10% of 10 decks
+9% synergy
Volrath's Stronghold
10% of 10 decks
+9% synergy
Urza's Power Plant
10% of 10 decks
+8% synergy
Urza's Mine
10% of 10 decks
+8% synergy
Urza's Tower
10% of 10 decks
+8% synergy
Thespian's Stage
10% of 10 decks
+7% synergy
Strip Mine
10% of 10 decks
+7% synergy
High Market
10% of 10 decks
+7% synergy
Inventors' Fair
10% of 10 decks
+6% synergy
Dryad Arbor
10% of 10 decks
+6% synergy
Hall of Heliod's Generosity
10% of 10 decks
+3% synergy
Phyrexian Tower
10% of 10 decks
+2% synergy
Yavimaya, Cradle of Growth
10% of 10 decks
+1% synergy
Urborg, Tomb of Yawgmoth
10% of 10 decks
+0% synergy
Ancient Tomb
10% of 10 decks
-1% synergy
Otawara, Soaring City
10% of 10 decks
-7% synergy
Reliquary Tower
10% of 10 decks
-19% synergy
Bojuka Bog
10% of 10 decks
-20% synergy
Mana Artifacts
Sol Ring
80% of 10 decks
-4% synergy
Arcane Signet
70% of 10 decks
-2% synergy
Mox Amber
30% of 10 decks
+26% synergy
Lotus Petal
30% of 10 decks
+23% synergy
Chromatic Lantern
30% of 10 decks
+20% synergy
Conversion Apparatus
22% of 9 decks
+22% synergy
Solar Transformer
22% of 9 decks
+21% synergy
Jeweled Lotus
20% of 10 decks
+14% synergy
Commander's Sphere
20% of 10 decks
+5% synergy
Springleaf Drum
10% of 10 decks
+8% synergy
Mox Opal
10% of 10 decks
+6% synergy
Mana Vault
10% of 10 decks
+4% synergy
Mana Crypt
10% of 10 decks
+1% synergy
Talisman of Progress
10% of 10 decks
-13% synergy
Talisman of Dominance
10% of 10 decks
-21% synergy
Lands
Command Tower
90% of 10 decks
+16% synergy
Wooded Foothills
80% of 10 decks
+70% synergy
Polluted Delta
80% of 10 decks
+69% synergy
Verdant Catacombs
80% of 10 decks
+69% synergy
Bloodstained Mire
70% of 10 decks
+60% synergy
Windswept Heath
70% of 10 decks
+60% synergy
Flooded Strand
70% of 10 decks
+59% synergy
Marsh Flats
70% of 10 decks
+59% synergy
Misty Rainforest
70% of 10 decks
+58% synergy
Exotic Orchard
70% of 10 decks
+34% synergy
Watery Grave
70% of 10 decks
+29% synergy
Hallowed Fountain
70% of 10 decks
+29% synergy
Breeding Pool
70% of 10 decks
+29% synergy
Mana Confluence
60% of 10 decks
+53% synergy
Arid Mesa
60% of 10 decks
+49% synergy
Scalding Tarn
60% of 10 decks
+49% synergy
Temple Garden
60% of 10 decks
+19% synergy
City of Brass
50% of 10 decks
+42% synergy
Savannah
50% of 10 decks
+37% synergy
Overgrown Tomb
50% of 10 decks
+7% synergy
Aether Hub
40% of 10 decks
+40% synergy
Bayou
40% of 10 decks
+26% synergy
Scrubland
40% of 10 decks
+26% synergy
Tundra
40% of 10 decks
+26% synergy
Tropical Island
40% of 10 decks
+26% synergy
Underground Sea
40% of 10 decks
+26% synergy
Frontier Bivouac
40% of 5 decks
+13% synergy
Xander's Lounge
40% of 5 decks
+12% synergy
Ziatora's Proving Ground
40% of 5 decks
+8% synergy
The World Tree
40% of 5 decks
+6% synergy
Sacred Foundry
40% of 5 decks
+4% synergy
Blood Crypt
40% of 5 decks
+1% synergy
Steam Vents
40% of 5 decks
+1% synergy
Godless Shrine
40% of 10 decks
-1% synergy
Stomping Ground
40% of 5 decks
-1% synergy
Zagoth Triome
30% of 10 decks
-1% synergy
Spara's Headquarters
30% of 10 decks
-2% synergy
Foreboding Landscape
22% of 9 decks
+9% synergy
Tranquil Landscape
22% of 9 decks
+5% synergy
Forbidden Orchard
20% of 10 decks
+17% synergy
Reflecting Pool
20% of 10 decks
+15% synergy
Fabled Passage
20% of 10 decks
+11% synergy
Needleverge Pathway
20% of 5 decks
+11% synergy
Plateau
20% of 5 decks
+7% synergy
Taiga
20% of 5 decks
+7% synergy
Badlands
20% of 5 decks
+6% synergy
Volcanic Island
20% of 5 decks
+6% synergy
Sheltering Landscape
20% of 5 decks
+6% synergy
Terramorphic Expanse
20% of 10 decks
+4% synergy
Bountiful Landscape
20% of 5 decks
+4% synergy