Deeproot Pilgrimage + Kiora's Follower + Seeker of Skybreak

Deeproot Pilgrimage
Kiora's Follower
Seeker of Skybreak

Requires
Deeproot Pilgrimage must be on the battlefield. Kiora's Follower must be on the battlefield. Seeker of Skybreak must be on the battlefield. Neither creature has summoning sickness.
Steps
  1. Activate either of the creatures by tapping it, targeting the other creature.
  2. If the tapped creature was a Merfolk, Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
  3. Resolve the ability from step 1, untapping the targeted creature.
  4. Repeat.
Results
Infinite ETB. Infinite creature tokens.

Hakbal of the Surging Soul
0.03% of 12656 decks 4 decks
Kumena, Tyrant of Orazca
0.03% of 5891 decks 2 decks
Vorel of the Hull Clade
0.10% of 2082 decks 2 decks
Derevi, Empyrial Tactician
0.03% of 7409 decks 2 decks
Kraum, Ludevic's Opus // Kydele, Chosen of Kruphix
0.94% of 106 decks 1 decks
Magus Lucea Kane
0.01% of 10994 decks 1 decks
High Synergy Cards
Harbinger of the Seas
57% of 7 decks +55% synergy
Forensic Researcher
50% of 8 decks +49% synergy
Svyelun of Sea and Sky
50% of 12 decks +49% synergy
Deeproot Historian
50% of 10 decks +49% synergy
Master of the Pearl Trident
50% of 12 decks +49% synergy
Ioreth of the Healing House
50% of 12 decks +48% synergy
Dramatic Reversal
50% of 12 decks +45% synergy
Tishana's Tidebinder
45% of 11 decks +43% synergy
Swan Song
58% of 12 decks +42% synergy
Deeproot Elite
42% of 12 decks +41% synergy
Top Cards
Fierce Guardianship
50% of 12 decks +32% synergy
Vodalian Hexcatcher
42% of 12 decks +41% synergy
Merfolk Sovereign
42% of 12 decks +41% synergy
Emperor Mihail II
42% of 12 decks +41% synergy
Stonybrook Banneret
42% of 12 decks +40% synergy
Thousand-Year Elixir
42% of 12 decks +39% synergy
Herald of Secret Streams
42% of 12 decks +39% synergy
Branching Evolution
42% of 12 decks +37% synergy
Chrome Mox
42% of 12 decks +35% synergy
Worldly Tutor
42% of 12 decks +28% synergy
Creatures
Birds of Paradise
42% of 12 decks +15% synergy
Singer of Swift Rivers
40% of 10 decks +37% synergy
Nicanzil, Current Conductor
36% of 11 decks +34% synergy
Seahunter
33% of 12 decks +33% synergy
Lord of Atlantis
33% of 12 decks +33% synergy
Aphetto Alchemist
33% of 12 decks +33% synergy
Seafloor Oracle
33% of 12 decks +32% synergy
Kopala, Warden of Waves
33% of 12 decks +32% synergy
Merrow Reejerey
33% of 12 decks +32% synergy
Thrasios, Triton Hero
33% of 12 decks +31% synergy
Murkfiend Liege
33% of 12 decks +29% synergy
Cold-Eyed Selkie
33% of 12 decks +29% synergy
Llanowar Elves
33% of 12 decks +12% synergy
Topography Tracker
30% of 10 decks +29% synergy
Surgespanner
25% of 12 decks +25% synergy
Fatestitcher
25% of 12 decks +24% synergy
Benthic Biomancer
25% of 12 decks +24% synergy
Merfolk Looter
25% of 12 decks +24% synergy
Kelpie Guide
25% of 12 decks +24% synergy
Kumena, Tyrant of Orazca
25% of 12 decks +24% synergy
Vizier of Tumbling Sands
25% of 12 decks +24% synergy
Metallic Mimic
25% of 12 decks +24% synergy
Merfolk Mistbinder
25% of 12 decks +24% synergy
Zegana, Utopian Speaker
25% of 12 decks +23% synergy
Thieving Skydiver
25% of 12 decks +23% synergy
Devoted Druid
25% of 12 decks +22% synergy
Thassa's Oracle
25% of 12 decks +18% synergy
Bloom Tender
25% of 12 decks +17% synergy
Instants
Force of Will
50% of 12 decks +39% synergy
Heroic Intervention
42% of 12 decks +12% synergy
Beast Within
42% of 12 decks +3% synergy
Counterspell
42% of 12 decks -1% synergy
Inspiring Call
33% of 12 decks +26% synergy
Mana Drain
33% of 12 decks +18% synergy
An Offer You Can't Refuse
33% of 12 decks +13% synergy
Force of Negation
25% of 12 decks +16% synergy
Nature's Claim
25% of 12 decks +15% synergy
Pongify
25% of 12 decks +13% synergy
Growth Spiral
25% of 12 decks +3% synergy
Negate
25% of 12 decks +2% synergy
Sorceries
Three Visits
42% of 12 decks +17% synergy
Nature's Lore
42% of 12 decks +10% synergy
Analyze the Pollen
38% of 8 decks +37% synergy
Kodama's Reach
33% of 12 decks +2% synergy
Farseek
33% of 12 decks -1% synergy
Cultivate
25% of 12 decks -21% synergy
Utility Artifacts
Isochron Scepter
33% of 12 decks +31% synergy
Bident of Thassa
25% of 12 decks +18% synergy
The One Ring
25% of 12 decks +16% synergy
Lightning Greaves
25% of 12 decks -0% synergy
Swiftfoot Boots
25% of 12 decks -3% synergy
Enchantments
Rhystic Study
42% of 12 decks +14% synergy
Deeproot Waters
33% of 12 decks +32% synergy
Intruder Alarm
33% of 12 decks +31% synergy
Simic Ascendancy
33% of 12 decks +28% synergy
Hardened Scales
33% of 12 decks +24% synergy
Mystic Remora
33% of 12 decks +15% synergy
Merrow Commerce
25% of 12 decks +24% synergy
Pemmin's Aura
25% of 12 decks +24% synergy
Freed from the Real
25% of 12 decks +23% synergy
Kindred Discovery
25% of 12 decks +18% synergy
Battles
Invasion of Ikoria
33% of 12 decks +28% synergy
Utility Lands
Boseiju, Who Endures
50% of 12 decks +30% synergy
Karn's Bastion
42% of 12 decks +37% synergy
Otawara, Soaring City
42% of 12 decks +25% synergy
Minamo, School at Water's Edge
33% of 12 decks +29% synergy
Ancient Tomb
33% of 12 decks +23% synergy
Llanowar Reborn
25% of 12 decks +23% synergy
Gaea's Cradle
25% of 12 decks +19% synergy
Alchemist's Refuge
25% of 12 decks +18% synergy
Mosswort Bridge
25% of 12 decks +15% synergy
Reliquary Tower
25% of 12 decks -4% synergy
Mana Artifacts
Sol Ring
100% of 12 decks +16% synergy
Arcane Signet
67% of 12 decks -5% synergy
Lotus Petal
33% of 12 decks +27% synergy
Talisman of Curiosity
33% of 12 decks +21% synergy
Simic Signet
33% of 12 decks +19% synergy
Commander's Sphere
25% of 12 decks +10% synergy
Lands
Command Tower
100% of 12 decks +26% synergy
Breeding Pool
75% of 12 decks +34% synergy
Rejuvenating Springs
67% of 12 decks +38% synergy
Cavern of Souls
50% of 12 decks +43% synergy
Wooded Foothills
50% of 12 decks +40% synergy
Flooded Strand
50% of 12 decks +39% synergy
Polluted Delta
50% of 12 decks +39% synergy
Verdant Catacombs
50% of 12 decks +39% synergy
Misty Rainforest
50% of 12 decks +38% synergy
Hinterland Harbor
50% of 12 decks +23% synergy
Gemstone Caverns
42% of 12 decks +37% synergy
Vineglimmer Snarl
42% of 12 decks +31% synergy
Windswept Heath
42% of 12 decks +31% synergy
Flooded Grove
42% of 12 decks +30% synergy
Yavimaya Coast
42% of 12 decks +15% synergy
Exotic Orchard
42% of 12 decks +6% synergy
Hedge Maze
38% of 8 decks +23% synergy
City of Brass
33% of 12 decks +25% synergy
Simic Growth Chamber
33% of 12 decks +14% synergy
Path of Ancestry
33% of 12 decks +12% synergy
Mana Confluence
25% of 12 decks +18% synergy
Scalding Tarn
25% of 12 decks +14% synergy
Tropical Island
25% of 12 decks +11% synergy
Dreamroot Cascade
25% of 12 decks +6% synergy