Greenweaver Druid + Umbral Mantle + Nyxbloom Ancient

Greenweaver Druid
Umbral Mantle
Nyxbloom Ancient

Requires
Greenweaver Druid must be on the battlefield. Umbral Mantle must be on the battlefield. Nyxbloom Ancient must be on the battlefield. Umbral Mantle attached to Greenweaver Druid. Greenweaver Druid does not have summoning sickness.
Steps
  1. Activate Greenweaver Druid by tapping it, adding six .
  2. Activate Greenweaver Druid by paying 3 and untapping it, giving itself +2/+2 until end of turn.
  3. Repeat.
Results
Infinitely large Greenweaver Druid until end of turn. Infinite green mana.

Omnath, Locus of Mana
0.37% of 6215 decks 23 decks
Raggadragga, Goreguts Boss
0.12% of 6869 decks 8 decks
Tyvar the Bellicose
0.20% of 2458 decks 5 decks
Kinnan, Bonder Prodigy
0.02% of 12009 decks 3 decks
Ezuri, Renegade Leader
0.08% of 2653 decks 2 decks
Yurlok of Scorch Thrash
0.02% of 6101 decks 1 decks
Selvala, Heart of the Wilds
0.02% of 4983 decks 1 decks
Lily Bowen, Raging Grandma
0.35% of 283 decks 1 decks
Shigeki, Jukai Visionary
0.11% of 945 decks 1 decks
Kodama of the East Tree // Sakashima of a Thousand Faces
0.08% of 1219 decks 1 decks
Saryth, the Viper's Fang
0.32% of 316 decks 1 decks
Magus Lucea Kane
0.01% of 10994 decks 1 decks
Azusa, Lost but Seeking
0.02% of 4210 decks 1 decks
Glissa Sunseeker
0.97% of 103 decks 1 decks
Rhys the Redeemed
0.02% of 4041 decks 1 decks
Marwyn, the Nurturer
0.02% of 5896 decks 1 decks
Eladamri, Korvecdal
0.08% of 1198 decks 1 decks
Kamahl, Fist of Krosa
0.24% of 418 decks 1 decks
New Cards
Tyvar, the Pummeler
80% of 5 decks +76% synergy
High Synergy Cards
Elvish Archdruid
82% of 57 decks +79% synergy
Circle of Dreams Druid
81% of 54 decks +78% synergy
Priest of Titania
77% of 57 decks +73% synergy
Radha, Heir to Keld
73% of 11 decks +71% synergy
Elvish Mystic
86% of 57 decks +68% synergy
Marwyn, the Nurturer
68% of 57 decks +66% synergy
Llanowar Elves
86% of 57 decks +65% synergy
Tyvar Kell
67% of 6 decks +65% synergy
Llanowar Tribe
65% of 57 decks +63% synergy
Karametra's Acolyte
63% of 57 decks +61% synergy
Top Cards
Fyndhorn Elves
74% of 57 decks +60% synergy
Rhythm of the Wild
73% of 11 decks +49% synergy
Fanatic of Rhonas
69% of 13 decks +60% synergy
Etali, Primal Conqueror
67% of 9 decks +55% synergy
Selvala, Heart of the Wilds
65% of 57 decks +60% synergy
Beast Whisperer
60% of 57 decks +48% synergy
Staff of Domination
58% of 57 decks +56% synergy
Ruby, Daring Tracker
57% of 7 decks +53% synergy
Mana Reflection
56% of 57 decks +54% synergy
Aggravated Assault
55% of 11 decks +51% synergy
Creatures
Thrasios, Triton Hero
60% of 5 decks +58% synergy
Arbor Elf
54% of 57 decks +48% synergy
Leafkin Avenger
45% of 11 decks +45% synergy
Zhur-Taa Druid
45% of 11 decks +43% synergy
Llanowar Visionary
44% of 57 decks +42% synergy
Seedborn Muse
44% of 57 decks +36% synergy
Canopy Tactician
44% of 55 decks +42% synergy
Craterhoof Behemoth
42% of 57 decks +36% synergy
Elvish Harbinger
40% of 57 decks +39% synergy
Joraga Treespeaker
39% of 57 decks +37% synergy
Devoted Druid
37% of 57 decks +34% synergy
Grand Warlord Radha
36% of 11 decks +34% synergy
Fyndhorn Elder
35% of 57 decks +35% synergy
Wirewood Channeler
35% of 57 decks +34% synergy
Incubation Druid
35% of 57 decks +30% synergy
Birds of Paradise
35% of 57 decks +8% synergy
Reclamation Sage
32% of 57 decks +21% synergy
Viridian Joiner
28% of 57 decks +28% synergy
Vorinclex, Voice of Hunger
28% of 57 decks +26% synergy
Hellkite Charger
27% of 11 decks +25% synergy
Klauth, Unrivaled Ancient
27% of 11 decks +23% synergy
Delighted Halfling
27% of 33 decks +13% synergy
Ashaya, Soul of the Wild
27% of 56 decks +23% synergy
Kami of Whispered Hopes
26% of 35 decks +18% synergy
Bighorner Rancher
25% of 16 decks +24% synergy
Leafkin Druid
25% of 57 decks +24% synergy
Ezuri, Renegade Leader
25% of 57 decks +23% synergy
Boreal Druid
23% of 57 decks +21% synergy
Allosaurus Shepherd
23% of 57 decks +20% synergy
Gyre Sage
23% of 57 decks +19% synergy
Oracle of Mul Daya
23% of 57 decks +17% synergy
Eternal Witness
23% of 57 decks +2% synergy
Llanowar Loamspeaker
22% of 49 decks +21% synergy
Leaf-Crowned Visionary
22% of 49 decks +20% synergy
Immaculate Magistrate
21% of 57 decks +20% synergy
Yeva, Nature's Herald
21% of 57 decks +20% synergy
Paradise Druid
21% of 57 decks +19% synergy
Zopandrel, Hunger Dominus
21% of 38 decks +16% synergy
Wood Elves
21% of 57 decks +14% synergy
Poison Dart Frog
20% of 20 decks +17% synergy
Quirion Ranger
19% of 57 decks +17% synergy
Galadhrim Brigade
18% of 22 decks +17% synergy
Ghalta, Stampede Tyrant
18% of 22 decks +13% synergy
Gwenna, Eyes of Gaea
18% of 45 decks +14% synergy
Druid of the Cowl
18% of 57 decks +17% synergy
Soul of the Harvest
18% of 57 decks +15% synergy
Rishkar, Peema Renegade
18% of 57 decks +13% synergy
Gilt-Leaf Archdruid
16% of 57 decks +16% synergy
Beastcaller Savant
16% of 57 decks +15% synergy
Seeker of Skybreak
16% of 57 decks +15% synergy
Instants
Counterspell
60% of 5 decks +17% synergy
Heroic Intervention
49% of 57 decks +19% synergy
Beast Within
42% of 57 decks +3% synergy
Savage Beating
27% of 11 decks +26% synergy
Electrodominance
27% of 11 decks +26% synergy
Comet Storm
27% of 11 decks +24% synergy
Return of the Wildspeaker
26% of 57 decks +13% synergy
Worldly Tutor
21% of 57 decks +7% synergy
Legolas's Quick Reflexes
18% of 22 decks +15% synergy
Vitalize
14% of 57 decks +13% synergy
Chord of Calling
14% of 57 decks +8% synergy
Krosan Grip
14% of 57 decks +6% synergy
Tyvar's Stand
13% of 38 decks +8% synergy
Benefactor's Draught
12% of 57 decks +12% synergy
Momentous Fall
12% of 57 decks +10% synergy
Galadhrim Ambush
11% of 28 decks +9% synergy
Fog
11% of 57 decks +8% synergy
Tamiyo's Safekeeping
10% of 51 decks +3% synergy
Snakeskin Veil
9% of 55 decks +5% synergy
Gaea's Gift
9% of 45 decks +5% synergy
Wrap in Vigor
9% of 57 decks +7% synergy
Kindred Summons
9% of 57 decks +7% synergy
Return to Nature
9% of 57 decks +2% synergy
Nature's Claim
9% of 57 decks -1% synergy
Ram Through
7% of 57 decks +4% synergy
Elven Ambush
5% of 55 decks +4% synergy
Shared Summons
5% of 57 decks +4% synergy
Force of Vigor
5% of 57 decks +2% synergy
Noxious Revival
5% of 57 decks -0% synergy
Inspiring Call
5% of 57 decks -2% synergy
Sorceries
Genesis Wave
39% of 57 decks +36% synergy
Crackle with Power
36% of 11 decks +34% synergy
Cultivate
32% of 57 decks -15% synergy
Last March of the Ents
28% of 32 decks +23% synergy
Green Sun's Zenith
26% of 57 decks +20% synergy
Rampant Growth
26% of 57 decks -8% synergy
Finale of Devastation
25% of 57 decks +16% synergy
Kodama's Reach
25% of 57 decks -7% synergy
Awaken the Woods
22% of 45 decks +18% synergy
Overwhelming Stampede
21% of 57 decks +15% synergy
Harmonize
16% of 57 decks +7% synergy
Rishkar's Expertise
16% of 57 decks +5% synergy
Natural Order
14% of 57 decks +12% synergy
Nature's Lore
14% of 57 decks -18% synergy
Primal Surge
12% of 57 decks +12% synergy
Tooth and Nail
12% of 57 decks +11% synergy
Skyshroud Claim
12% of 57 decks +3% synergy
Elvish Promenade
11% of 57 decks +9% synergy
Traverse the Outlands
11% of 57 decks +8% synergy
Green Sun's Twilight
10% of 40 decks +8% synergy
Bala Ged Recovery
9% of 56 decks -0% synergy
Wurmcalling
9% of 57 decks +9% synergy
Praetor's Counsel
9% of 57 decks +8% synergy
Animist's Awakening
9% of 57 decks +7% synergy
Soul's Majesty
9% of 57 decks +7% synergy
Harvest Season
9% of 57 decks +7% synergy
Shamanic Revelation
9% of 57 decks -1% synergy
Sylvan Tutor
7% of 57 decks +6% synergy
Nissa's Pilgrimage
7% of 57 decks +5% synergy
Explosive Vegetation
7% of 57 decks +4% synergy
Regrowth
7% of 57 decks +4% synergy
Triumph of the Hordes
7% of 57 decks +3% synergy
Explore
7% of 57 decks -2% synergy
Three Visits
7% of 57 decks -18% synergy
Bounty of Skemfar
5% of 55 decks +5% synergy
Hurricane
5% of 57 decks +5% synergy
Boundless Realms
5% of 57 decks +5% synergy
Sylvan Awakening
5% of 57 decks +4% synergy
Broken Bond
5% of 57 decks +3% synergy
Farseek
5% of 57 decks -29% synergy
Utility Artifacts
Lightning Greaves
49% of 57 decks +24% synergy
Swiftfoot Boots
37% of 57 decks +9% synergy
Doubling Cube
35% of 57 decks +35% synergy
Thousand-Year Elixir
33% of 57 decks +31% synergy
The Great Henge
33% of 57 decks +23% synergy
Sword of the Paruns
30% of 57 decks +30% synergy
Whispersilk Cloak
19% of 57 decks +15% synergy
Lifecrafter's Bestiary
16% of 57 decks +12% synergy
Emerald Medallion
14% of 57 decks +12% synergy
Rhonas's Monument
12% of 57 decks +11% synergy
Akroma's Memorial
11% of 57 decks +9% synergy
Loxodon Warhammer
11% of 57 decks +9% synergy
Commander's Plate
9% of 56 decks +6% synergy
Vanquisher's Banner
9% of 57 decks +5% synergy
Ozolith, the Shattered Spire
9% of 35 decks +2% synergy
The One Ring
9% of 35 decks -0% synergy
Horizon Stone
7% of 56 decks +7% synergy
Prowler's Helm
7% of 57 decks +6% synergy
Illusionist's Bracers
7% of 57 decks +6% synergy
Trailblazer's Boots
7% of 57 decks +5% synergy
Shadowspear
7% of 57 decks +3% synergy
Sword of the Animist
7% of 57 decks +2% synergy
Staff of Titania
7% of 45 decks +6% synergy
Vedalken Orrery
5% of 57 decks +4% synergy
Darksteel Plate
5% of 57 decks +4% synergy
Rings of Brighthearth
5% of 57 decks +4% synergy
Enchantments
Leyline of Abundance
54% of 57 decks +53% synergy
Zendikar Resurgent
40% of 57 decks +38% synergy
Growing Rites of Itlimoc
39% of 57 decks +33% synergy
Elven Chorus
33% of 30 decks +29% synergy
Asceticism
32% of 57 decks +29% synergy
Helix Pinnacle
30% of 57 decks +29% synergy
Virtue of Strength
29% of 24 decks +26% synergy
Concordant Crossroads
28% of 57 decks +25% synergy
Elvish Guidance
26% of 57 decks +26% synergy
Wilderness Reclamation
25% of 57 decks +21% synergy
Guardian Project
23% of 57 decks +14% synergy
Vernal Bloom
19% of 57 decks +19% synergy
Sylvan Library
19% of 57 decks +7% synergy
Bear Umbra
18% of 57 decks +13% synergy
Wild Growth
18% of 57 decks +7% synergy
Cryptolith Rite
14% of 57 decks +11% synergy
Kenrith's Transformation
14% of 57 decks +8% synergy
Exploration
14% of 57 decks +6% synergy
Defense of the Heart
12% of 57 decks +10% synergy
Tribute to the World Tree
11% of 35 decks +3% synergy
Quest for Renewal
11% of 57 decks +9% synergy
Rancor
11% of 57 decks +6% synergy
Beastmaster Ascension
11% of 57 decks +5% synergy
Unnatural Growth
9% of 53 decks +4% synergy
Sylvan Anthem
9% of 54 decks +7% synergy
Leyline Immersion
9% of 33 decks +8% synergy
Lignify
9% of 57 decks +7% synergy
Song of the Dryads
9% of 57 decks +6% synergy
Abundance
9% of 57 decks +6% synergy
Dictate of Karametra
7% of 57 decks +6% synergy
Heartbeat of Spring
7% of 57 decks +6% synergy
Canopy Cover
7% of 57 decks +6% synergy
Alpha Authority
7% of 57 decks +6% synergy
Overgrowth
7% of 57 decks +5% synergy
Burgeoning
7% of 57 decks +3% synergy
Utopia Sprawl
7% of 57 decks -1% synergy
Hardened Scales
7% of 57 decks -2% synergy
Garruk's Uprising
7% of 57 decks -8% synergy
Jugan Defends the Temple
6% of 51 decks +5% synergy
Glorious Sunrise
6% of 53 decks +4% synergy
Druid Class
6% of 54 decks +3% synergy
Primal Rage
5% of 57 decks +5% synergy
Frontier Siege
5% of 57 decks +4% synergy
Colossification
5% of 57 decks +4% synergy
Survival of the Fittest
5% of 57 decks +3% synergy
Greater Good
5% of 57 decks +0% synergy
Elemental Bond
5% of 57 decks -0% synergy
Battles
Invasion of Ikoria
9% of 35 decks +3% synergy
Planeswalkers
Nissa, Who Shakes the World
37% of 57 decks +34% synergy
Freyalise, Llanowar's Fury
33% of 57 decks +32% synergy
Garruk, Primal Hunter
9% of 57 decks +6% synergy
Nissa, Worldwaker
5% of 57 decks +5% synergy
Utility Lands
Rogue's Passage
39% of 57 decks +19% synergy
Kessig Wolf Run
36% of 11 decks +20% synergy
Nykthos, Shrine to Nyx
32% of 57 decks +26% synergy
Reliquary Tower
32% of 57 decks +2% synergy
Wirewood Lodge
30% of 57 decks +28% synergy
Castle Garenbrig
28% of 57 decks +23% synergy
Dryad Arbor
23% of 57 decks +19% synergy
Mosswort Bridge
23% of 57 decks +12% synergy
Boseiju, Who Endures
18% of 51 decks -2% synergy
Gaea's Cradle
16% of 57 decks +10% synergy
Yavimaya, Cradle of Growth
15% of 54 decks +5% synergy
Tranquil Thicket
11% of 57 decks +7% synergy
Yavimaya Hollow
9% of 57 decks +8% synergy
Oran-Rief, the Vastwood
9% of 57 decks +4% synergy
Ancient Tomb
9% of 57 decks -2% synergy
Lair of the Hydra
6% of 54 decks +4% synergy
Tyrite Sanctum
5% of 55 decks +3% synergy
Crawling Barrens
5% of 56 decks +5% synergy
Homeward Path
5% of 57 decks +4% synergy
Mana Artifacts
Sol Ring
65% of 57 decks -20% synergy
Caged Sun
35% of 57 decks +33% synergy
Nyx Lotus
18% of 57 decks +16% synergy
Arcane Signet
16% of 57 decks -56% synergy
Gauntlet of Power
14% of 57 decks +13% synergy
Extraplanar Lens
14% of 57 decks +13% synergy
Basalt Monolith
11% of 57 decks +8% synergy
Jeweled Lotus
7% of 56 decks +1% synergy
Patriar's Seal
6% of 49 decks +4% synergy
Chromatic Orrery
5% of 57 decks +4% synergy
Commander's Sphere
5% of 57 decks -10% synergy
Lands
Cinder Glade
64% of 11 decks +25% synergy
Stomping Ground
64% of 11 decks +22% synergy
Temple of Mystery
60% of 5 decks +43% synergy
Breeding Pool
60% of 5 decks +19% synergy
Rockfall Vale
45% of 11 decks +23% synergy
Rootbound Crag
45% of 11 decks +22% synergy
Cragcrown Pathway
36% of 11 decks +27% synergy
Gruul Turf
27% of 11 decks +11% synergy
Spire Garden
27% of 11 decks +3% synergy
Command Tower
26% of 57 decks -48% synergy
Myriad Landscape
23% of 57 decks +3% synergy
Wooded Foothills
11% of 57 decks +0% synergy
Path of Ancestry
11% of 57 decks -11% synergy
Fabled Passage
7% of 57 decks -2% synergy
Verdant Catacombs
7% of 57 decks -4% synergy
Terramorphic Expanse
7% of 57 decks -9% synergy
Exotic Orchard
7% of 57 decks -29% synergy
Blighted Woodland
5% of 57 decks -1% synergy
Cavern of Souls
5% of 57 decks -2% synergy