Careful Cultivation + Umbral Mantle + Biomancer's Familiar

Careful Cultivation
Umbral Mantle
Biomancer's Familiar

Requires
Careful Cultivation must be on the battlefield. Umbral Mantle must be on the battlefield. Biomancer's Familiar must be on the battlefield. Umbral Mantle and Careful Cultivation attached to the same creature you control that does not have summoning sickness.
Steps
  1. Activate the creature with Careful Cultivation and Umbral Mantle attached by tapping it, adding .
  2. Activate the creature by paying 1 and untapping it, causing it to get +2/+2 until end of turn.
  3. Repeat.
Results
Infinite green mana. Infinitely large creature until end of turn.

Kenrith, the Returned King
0.01% of 21799 decks 2 decks
Tazri, Stalwart Survivor
0.05% of 1861 decks 1 decks
Zaxara, the Exemplary
0.01% of 12060 decks 1 decks
High Synergy Cards
Training Grounds
100% of 4 decks +97% synergy
Creatures
Illustrious Wanderglyph
100% of 1 decks +97% synergy
Pili-Pala
75% of 4 decks +75% synergy
Kinnan, Bonder Prodigy
75% of 4 decks +71% synergy
Svella, Ice Shaper
67% of 3 decks +65% synergy
Zirda, the Dawnwaker
67% of 3 decks +64% synergy
Inga and Esika
67% of 3 decks +62% synergy
Faeburrow Elder
67% of 3 decks +55% synergy
Grand Architect
50% of 4 decks +49% synergy
Gyre Engineer
50% of 4 decks +49% synergy
Gretchen Titchwillow
50% of 4 decks +49% synergy
Walking Ballista
50% of 4 decks +47% synergy
Marwyn, the Nurturer
50% of 4 decks +47% synergy
Nyxbloom Ancient
50% of 4 decks +46% synergy
Bloom Tender
50% of 4 decks +42% synergy
Seedborn Muse
50% of 4 decks +42% synergy
Birds of Paradise
50% of 4 decks +23% synergy
Puresight Merrow
33% of 3 decks +33% synergy
Seedcradle Witch
33% of 3 decks +33% synergy
Order of Whiteclay
33% of 3 decks +33% synergy
Shattergang Brothers
33% of 3 decks +33% synergy
Angel of the Dire Hour
33% of 3 decks +33% synergy
Soulbright Flamekin
33% of 3 decks +33% synergy
Yurlok of Scorch Thrash
33% of 3 decks +33% synergy
Myrkul, Lord of Bones
33% of 3 decks +33% synergy
Dynaheir, Invoker Adept
33% of 3 decks +32% synergy
Zimone and Dina
33% of 3 decks +32% synergy
Slimefoot and Squee
33% of 3 decks +32% synergy
White Plume Adventurer
33% of 3 decks +32% synergy
Oswald Fiddlebender
33% of 3 decks +32% synergy
Orthion, Hero of Lavabrink
33% of 3 decks +31% synergy
Nissa, Resurgent Animist
33% of 3 decks +31% synergy
Drumbellower
33% of 3 decks +31% synergy
Rocco, Cabaretti Caterer
33% of 3 decks +31% synergy
Sigarda, Font of Blessings
33% of 3 decks +30% synergy
Emiel the Blessed
33% of 3 decks +30% synergy
Kenrith, the Returned King
33% of 3 decks +30% synergy
Brudiclad, Telchor Engineer
33% of 3 decks +30% synergy
Thalia and The Gitrog Monster
33% of 3 decks +29% synergy
Elesh Norn, Mother of Machines
33% of 3 decks +28% synergy
Sisay, Weatherlight Captain
33% of 3 decks +27% synergy
Faerie Mastermind
33% of 3 decks +26% synergy
Loran of the Third Path
33% of 3 decks +26% synergy
Ramos, Dragon Engine
33% of 3 decks +26% synergy
Kami of Whispered Hopes
33% of 3 decks +26% synergy
Zacama, Primal Calamity
33% of 3 decks +24% synergy
Etali, Primal Conqueror
33% of 3 decks +22% synergy
Noble Hierarch
33% of 3 decks +17% synergy
Ignoble Hierarch
33% of 3 decks +8% synergy
Crossroads Candleguide
25% of 4 decks +25% synergy
Knacksaw Clique
25% of 4 decks +25% synergy
Instants
Dramatic Reversal
50% of 4 decks +45% synergy
Worldly Tutor
50% of 4 decks +36% synergy
Beast Within
50% of 4 decks +11% synergy
Counterspell
50% of 4 decks +7% synergy
Pile On
33% of 3 decks +32% synergy
Filter Out
33% of 3 decks +31% synergy
Render Silent
33% of 3 decks +31% synergy
Eladamri's Call
33% of 3 decks +22% synergy
Enlightened Tutor
33% of 3 decks +16% synergy
Generous Gift
33% of 3 decks +8% synergy
Chaos Warp
33% of 3 decks +1% synergy
Path to Exile
33% of 3 decks -12% synergy
Swords to Plowshares
33% of 3 decks -29% synergy
Urza's Rebuff
25% of 4 decks +25% synergy
Didn't Say Please
25% of 4 decks +24% synergy
Cancel
25% of 4 decks +23% synergy
Drown in Dreams
25% of 4 decks +23% synergy
Infernal Grasp
25% of 4 decks +18% synergy
Rapid Hybridization
25% of 4 decks +16% synergy
Harrow
25% of 4 decks +15% synergy
Mystical Tutor
25% of 4 decks +10% synergy
Vampiric Tutor
25% of 4 decks +7% synergy
Brainstorm
25% of 4 decks +4% synergy
Dark Ritual
25% of 4 decks +3% synergy
Cyclonic Rift
25% of 4 decks -3% synergy
Heroic Intervention
25% of 4 decks -5% synergy
Assassin's Trophy
25% of 4 decks -5% synergy
Sorceries
False Dawn
33% of 3 decks +33% synergy
Sevinne's Reclamation
33% of 3 decks +26% synergy
Farewell
33% of 3 decks +20% synergy
Supreme Verdict
33% of 3 decks +19% synergy
Ruinous Ultimatum
33% of 3 decks +15% synergy
Psychic Drain
25% of 4 decks +25% synergy
Overwhelming Forces
25% of 4 decks +25% synergy
Consume Spirit
25% of 4 decks +25% synergy
Diabolic Revelation
25% of 4 decks +25% synergy
Increasing Confusion
25% of 4 decks +25% synergy
Damnable Pact
25% of 4 decks +24% synergy
Mind Grind
25% of 4 decks +23% synergy
Circuitous Route
25% of 4 decks +23% synergy
Grim Tutor
25% of 4 decks +20% synergy
Torment of Hailfire
25% of 4 decks +20% synergy
Exsanguinate
25% of 4 decks +19% synergy
Diabolic Tutor
25% of 4 decks +19% synergy
Villainous Wealth
25% of 4 decks +17% synergy
Finale of Devastation
25% of 4 decks +17% synergy
Night's Whisper
25% of 4 decks +16% synergy
Sign in Blood
25% of 4 decks +15% synergy
Preordain
25% of 4 decks +14% synergy
Ponder
25% of 4 decks +12% synergy
Feed the Swarm
25% of 4 decks +7% synergy
Demonic Tutor
25% of 4 decks +3% synergy
Kodama's Reach
25% of 4 decks -6% synergy
Nature's Lore
25% of 4 decks -7% synergy
Farseek
25% of 4 decks -9% synergy
Rampant Growth
25% of 4 decks -10% synergy
Cultivate
25% of 4 decks -21% synergy
Utility Artifacts
Heartstone
75% of 4 decks +74% synergy
Agatha's Soul Cauldron
50% of 2 decks +48% synergy
Staff of Domination
50% of 4 decks +48% synergy
Lightning Greaves
50% of 4 decks +25% synergy
Swiftfoot Boots
50% of 4 decks +22% synergy
Ozolith, the Shattered Spire
33% of 3 decks +27% synergy
Sword of the Paruns
25% of 4 decks +25% synergy
Amulet of Vigor
25% of 4 decks +24% synergy
Lithoform Engine
25% of 4 decks +24% synergy
Rings of Brighthearth
25% of 4 decks +23% synergy
Thousand-Year Elixir
25% of 4 decks +23% synergy
Bootleggers' Stash
25% of 4 decks +23% synergy
Isochron Scepter
25% of 4 decks +23% synergy
Time Sieve
25% of 4 decks +22% synergy
Ashnod's Altar
25% of 4 decks +17% synergy
Wayfarer's Bauble
25% of 4 decks +15% synergy
Enchantments
Bigger on the Inside
100% of 1 decks +98% synergy
Pemmin's Aura
75% of 4 decks +74% synergy
Freed from the Real
75% of 4 decks +73% synergy
Gauntlets of Light
33% of 3 decks +33% synergy
Greater Auramancy
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Court of Grace
33% of 3 decks +30% synergy
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33% of 3 decks +30% synergy
Sphere of Safety
33% of 3 decks +29% synergy
Ghostly Prison
33% of 3 decks +22% synergy
Mirari's Wake
33% of 3 decks +20% synergy
Smothering Tithe
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Power Artifact
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25% of 4 decks +24% synergy
Quest for Renewal
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Leyline of Abundance
25% of 4 decks +24% synergy
Mana Reflection
25% of 4 decks +23% synergy
Khalni Heart Expedition
25% of 4 decks +23% synergy
Cryptolith Rite
25% of 4 decks +22% synergy
Wilderness Reclamation
25% of 4 decks +21% synergy
Exquisite Blood
25% of 4 decks +20% synergy
Sanguine Bond
25% of 4 decks +19% synergy
Utopia Sprawl
25% of 4 decks +17% synergy
Wild Growth
25% of 4 decks +14% synergy
Propaganda
25% of 4 decks +13% synergy
Planeswalkers
Jared Carthalion
33% of 3 decks +31% synergy
Wrenn and Realmbreaker
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Sarkhan Unbroken
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Tyvar, Jubilant Brawler
33% of 3 decks +28% synergy
Tamiyo, the Moon Sage
25% of 4 decks +24% synergy
Tezzeret, Artifice Master
25% of 4 decks +24% synergy
Utility Lands
Bojuka Bog
50% of 4 decks +20% synergy
Maze's End
25% of 4 decks +24% synergy
Baldur's Gate
25% of 4 decks +24% synergy
Cascading Cataracts
25% of 4 decks +24% synergy
Maze of Ith
25% of 4 decks +22% synergy
Urza's Saga
25% of 4 decks +18% synergy
Yavimaya, Cradle of Growth
25% of 4 decks +16% synergy
Urborg, Tomb of Yawgmoth
25% of 4 decks +15% synergy
Takenuma, Abandoned Mire
25% of 4 decks +14% synergy
Cabal Coffers
25% of 4 decks +14% synergy
Otawara, Soaring City
25% of 4 decks +8% synergy
Boseiju, Who Endures
25% of 4 decks +5% synergy
Mana Artifacts
Sol Ring
100% of 4 decks +16% synergy
Chromatic Lantern
75% of 4 decks +65% synergy
Relic of Legends
50% of 4 decks +48% synergy
Basalt Monolith
50% of 4 decks +47% synergy
Arcane Signet
50% of 4 decks -22% synergy
Gemstone Array
25% of 4 decks +25% synergy
Energy Refractor
25% of 4 decks +25% synergy
Empowered Autogenerator
25% of 4 decks +25% synergy
Paradise Mantle
25% of 4 decks +24% synergy
Machine God's Effigy
25% of 4 decks +24% synergy
Nyx Lotus
25% of 4 decks +24% synergy
Chromatic Orrery
25% of 4 decks +23% synergy
Grim Monolith
25% of 4 decks +23% synergy
Decanter of Endless Water
25% of 4 decks +20% synergy
Talisman of Resilience
25% of 4 decks +13% synergy
Talisman of Curiosity
25% of 4 decks +13% synergy
Commander's Sphere
25% of 4 decks +10% synergy
Lands
The World Tree
100% of 3 decks +67% synergy
Command Tower
100% of 4 decks +26% synergy
Cliffgate
33% of 3 decks +32% synergy
Citadel Gate
33% of 3 decks +32% synergy
Rakdos Guildgate
33% of 3 decks +29% synergy
Azorius Guildgate
33% of 3 decks +29% synergy
Gruul Guildgate
33% of 3 decks +29% synergy
Orzhov Guildgate
33% of 3 decks +29% synergy
Selesnya Guildgate
33% of 3 decks +29% synergy
Boros Guildgate
33% of 3 decks +28% synergy
Izzet Guildgate
33% of 3 decks +28% synergy
Plateau
33% of 3 decks +21% synergy
Savannah
33% of 3 decks +20% synergy
Taiga
33% of 3 decks +20% synergy
Furycalm Snarl
33% of 3 decks +20% synergy
Badlands
33% of 3 decks +20% synergy
Scrubland
33% of 3 decks +20% synergy
Frostboil Snarl
33% of 3 decks +20% synergy
Volcanic Island
33% of 3 decks +20% synergy
Tundra
33% of 3 decks +19% synergy
Sandsteppe Citadel
33% of 3 decks +8% synergy
Seaside Citadel
33% of 3 decks +7% synergy
Shivan Reef
33% of 3 decks +7% synergy
Frontier Bivouac
33% of 3 decks +6% synergy
Xander's Lounge
33% of 3 decks +6% synergy
Training Center
33% of 3 decks +6% synergy
Arcane Sanctum
33% of 3 decks +6% synergy
Raffine's Tower
33% of 3 decks +6% synergy
Nomad Outpost
33% of 3 decks +6% synergy
Crumbling Necropolis
33% of 3 decks +2% synergy
Jungle Shrine
33% of 3 decks +1% synergy
Bad River
25% of 4 decks +25% synergy
Flood Plain
25% of 4 decks +25% synergy
Rocky Tar Pit
25% of 4 decks +24% synergy
Mountain Valley
25% of 4 decks +24% synergy
Heap Gate
25% of 4 decks +24% synergy
Gond Gate
25% of 4 decks +24% synergy
Black Dragon Gate
25% of 4 decks +23% synergy
Sea Gate
25% of 4 decks +23% synergy
Manor Gate
25% of 4 decks +23% synergy
Krosan Verge
25% of 4 decks +22% synergy
Forbidden Orchard
25% of 4 decks +22% synergy
Ash Barrens
25% of 4 decks +20% synergy
Dimir Guildgate
25% of 4 decks +20% synergy
Reflecting Pool
25% of 4 decks +20% synergy
Golgari Guildgate
25% of 4 decks +19% synergy
Simic Guildgate
25% of 4 decks +19% synergy
Darkbore Pathway
25% of 4 decks +16% synergy
Barkchannel Pathway
25% of 4 decks +16% synergy
Fabled Passage
25% of 4 decks +16% synergy