Blossom Dryad + Gaea's Cradle + Umbral Mantle

Blossom Dryad
Gaea's Cradle
Umbral Mantle

Requires
Blossom Dryad must be on the battlefield. Gaea's Cradle must be on the battlefield. Umbral Mantle must be on the battlefield. Umbral Mantle attached to Blossom Dryad. Blossom Dryad does not have summoning sickness. You control at least four creatures.
Steps
  1. Activate Gaea's Cradle by tapping it, adding at least .
  2. Activate Blossom Dryad by tapping it, untapping Gaea's Cradle.
  3. Activate Blossom Dryad by paying 3 and untapping it, giving itself +2/+2 until end of turn.
  4. Repeat.
Results
Infinitely large Blossom Dryad until end of turn. Infinite mana lands you control can produce.

Omnath, Locus of Mana
0.03% of 6215 decks 2 decks
Wylie Duke, Atiin Hero
0.38% of 533 decks 2 decks
Kinnan, Bonder Prodigy
0.01% of 12009 decks 1 decks
Kenrith, the Returned King
0.00% of 21513 decks 1 decks
Esika, God of the Tree
0.01% of 17767 decks 1 decks
Phelddagrif
0.04% of 2597 decks 1 decks
God-Eternal Rhonas
1.03% of 97 decks 1 decks
Omnath, Locus of Creation
0.01% of 13596 decks 1 decks
Nikya of the Old Ways
0.04% of 2503 decks 1 decks
Agatha of the Vile Cauldron
0.03% of 3857 decks 1 decks
Kamahl, Fist of Krosa
0.24% of 418 decks 1 decks
Marwyn, the Nurturer
0.02% of 5896 decks 1 decks
Tuvasa the Sunlit
0.02% of 5045 decks 1 decks
Imaryll, Elfhame Elite
0.25% of 405 decks 1 decks
High Synergy Cards
Pemmin's Aura
83% of 6 decks +82% synergy
Freed from the Real
83% of 6 decks +81% synergy
Voyaging Satyr
69% of 16 decks +68% synergy
Argothian Elder
62% of 16 decks +62% synergy
Ley Druid
56% of 16 decks +56% synergy
Krosan Restorer
56% of 16 decks +56% synergy
Enlightened Tutor
71% of 7 decks +54% synergy
Idyllic Tutor
57% of 7 decks +52% synergy
Nykthos, Shrine to Nyx
56% of 16 decks +51% synergy
Staff of Domination
50% of 16 decks +48% synergy
Top Cards
Eladamri's Call
57% of 7 decks +46% synergy
Worldly Tutor
50% of 16 decks +36% synergy
Ashaya, Soul of the Wild
44% of 16 decks +40% synergy
Fyndhorn Elves
44% of 16 decks +31% synergy
Elvish Mystic
44% of 16 decks +26% synergy
Llanowar Elves
44% of 16 decks +23% synergy
Juniper Order Druid
38% of 16 decks +37% synergy
Ley Weaver
38% of 16 decks +37% synergy
Circle of Dreams Druid
38% of 16 decks +34% synergy
Nyxbloom Ancient
38% of 16 decks +34% synergy
Creatures
Fatestitcher
50% of 6 decks +49% synergy
Aphetto Alchemist
50% of 6 decks +49% synergy
Vizier of Tumbling Sands
50% of 6 decks +49% synergy
Kiora's Follower
50% of 6 decks +44% synergy
Emiel the Blessed
43% of 7 decks +39% synergy
Esper Sentinel
43% of 7 decks +22% synergy
Arbor Elf
38% of 16 decks +31% synergy
Birds of Paradise
38% of 16 decks +11% synergy
Portent Tracker
33% of 9 decks +33% synergy
Kami of Whispered Hopes
33% of 9 decks +26% synergy
Beast Whisperer
31% of 16 decks +19% synergy
Eternal Witness
31% of 16 decks +10% synergy
Hope Tender
25% of 16 decks +25% synergy
Stone-Seeder Hierophant
25% of 16 decks +25% synergy
Magus of the Candelabra
25% of 16 decks +24% synergy
Karametra's Acolyte
25% of 16 decks +23% synergy
Walking Ballista
25% of 16 decks +22% synergy
Elvish Archdruid
25% of 16 decks +21% synergy
Priest of Titania
25% of 16 decks +21% synergy
Selvala, Heart of the Wilds
25% of 16 decks +20% synergy
Dryad of the Ilysian Grove
25% of 16 decks +17% synergy
Bloom Tender
25% of 16 decks +17% synergy
Scryb Ranger
19% of 16 decks +18% synergy
Llanowar Tribe
19% of 16 decks +17% synergy
Allosaurus Shepherd
19% of 16 decks +16% synergy
Marwyn, the Nurturer
19% of 16 decks +16% synergy
Temur Sabertooth
19% of 16 decks +15% synergy
Sanctum Weaver
19% of 16 decks +13% synergy
Oracle of Mul Daya
19% of 16 decks +13% synergy
Azusa, Lost but Seeking
19% of 16 decks +11% synergy
Instants
Swords to Plowshares
43% of 7 decks -20% synergy
Crop Rotation
38% of 16 decks +28% synergy
Beast Within
38% of 16 decks -1% synergy
Chord of Calling
31% of 16 decks +25% synergy
Heroic Intervention
31% of 16 decks +2% synergy
Vitalize
19% of 16 decks +18% synergy
Sorceries
Windfall
50% of 6 decks +37% synergy
Green Sun's Zenith
38% of 16 decks +31% synergy
Bala Ged Recovery
31% of 16 decks +22% synergy
Genesis Wave
25% of 16 decks +23% synergy
Sylvan Scrying
25% of 16 decks +22% synergy
Finale of Devastation
25% of 16 decks +17% synergy
Sylvan Tutor
19% of 16 decks +18% synergy
Eldritch Evolution
19% of 16 decks +14% synergy
Cultivate
19% of 16 decks -28% synergy
Utility Artifacts
Expedition Map
25% of 16 decks +22% synergy
Amulet of Vigor
19% of 16 decks +18% synergy
Illusionist's Bracers
19% of 16 decks +17% synergy
Rings of Brighthearth
19% of 16 decks +17% synergy
Enchantments
Sterling Grove
43% of 7 decks +35% synergy
Exploration
38% of 16 decks +29% synergy
Utopia Sprawl
31% of 16 decks +24% synergy
Wild Growth
31% of 16 decks +20% synergy
Sylvan Library
31% of 16 decks +19% synergy
Helix Pinnacle
25% of 16 decks +24% synergy
Mana Reflection
25% of 16 decks +23% synergy
Zendikar Resurgent
25% of 16 decks +22% synergy
Vernal Bloom
19% of 16 decks +18% synergy
Heartbeat of Spring
19% of 16 decks +18% synergy
Quest for Renewal
19% of 16 decks +17% synergy
Song of the Dryads
19% of 16 decks +16% synergy
Abundance
19% of 16 decks +16% synergy
Cryptolith Rite
19% of 16 decks +15% synergy
Wilderness Reclamation
19% of 16 decks +15% synergy
Fertile Ground
19% of 16 decks +15% synergy
Bear Umbra
19% of 16 decks +14% synergy
Growing Rites of Itlimoc
19% of 16 decks +13% synergy
Kenrith's Transformation
19% of 16 decks +12% synergy
Guardian Project
19% of 16 decks +10% synergy
Planeswalkers
Nissa, Who Shakes the World
19% of 16 decks +16% synergy
Utility Lands
Boseiju, Who Endures
50% of 12 decks +30% synergy
Lotus Field
31% of 16 decks +30% synergy
Maze of Ith
31% of 16 decks +28% synergy
Dryad Arbor
31% of 16 decks +27% synergy
Yavimaya, Cradle of Growth
31% of 16 decks +22% synergy
Castle Garenbrig
25% of 16 decks +20% synergy
Ancient Tomb
25% of 16 decks +14% synergy
Reliquary Tower
25% of 16 decks -4% synergy
Lotus Vale
19% of 16 decks +19% synergy
Deserted Temple
19% of 16 decks +18% synergy
Jungle Basin
19% of 16 decks +18% synergy
Wirewood Lodge
19% of 16 decks +17% synergy
Emergence Zone
19% of 16 decks +16% synergy
Urza's Saga
19% of 16 decks +12% synergy
Mana Artifacts
Sol Ring
69% of 16 decks -16% synergy
Arcane Signet
31% of 16 decks -41% synergy
Mana Crypt
25% of 16 decks +16% synergy
Caged Sun
19% of 16 decks +16% synergy
Basalt Monolith
19% of 16 decks +16% synergy
Lands
Savannah
71% of 7 decks +58% synergy
Tropical Island
67% of 6 decks +53% synergy
Command Tower
56% of 16 decks -18% synergy
Simic Growth Chamber
50% of 6 decks +30% synergy
Rejuvenating Springs
50% of 6 decks +21% synergy
Bountiful Promenade
43% of 7 decks +19% synergy
Temple Garden
43% of 7 decks +2% synergy
Blighted Woodland
19% of 16 decks +13% synergy
Windswept Heath
19% of 16 decks +8% synergy
Path of Ancestry
19% of 16 decks -2% synergy