Biomancer's Familiar + Umbral Mantle + Arixmethes, Slumbering Isle

Biomancer's Familiar
Umbral Mantle
Arixmethes, Slumbering Isle

Requires
Biomancer's Familiar must be on the battlefield. Umbral Mantle must be on the battlefield. Arixmethes, Slumbering Isle must be on the battlefield. Arixmethes is a creaure and does not have summoning sickness. Umbral Mantle attached to Arixmethes.
Steps
  1. Activate Arixmethes by tapping it, adding .
  2. Activate Arixmethes by paying 1 and untapping it, giving it +2/+2 until end of turn.
  3. Repeat.
Results
Infinite colored mana. Infinitely large Arixmethes until end of turn.

Kydele, Chosen of Kruphix // Thrasios, Triton Hero
2.20% of 364 decks 8 decks
Arixmethes, Slumbering Isle
0.11% of 3636 decks 4 decks
The Pride of Hull Clade
0.19% of 2151 decks 4 decks
Kenrith, the Returned King
0.01% of 21513 decks 3 decks
Kinnan, Bonder Prodigy
0.02% of 12009 decks 3 decks
Tazri, Stalwart Survivor
0.11% of 1780 decks 2 decks
Kenessos, Priest of Thassa
0.05% of 4339 decks 2 decks
Thrasios, Triton Hero // Vial Smasher the Fierce
0.03% of 3518 decks 1 decks
Zaxara, the Exemplary
0.01% of 11646 decks 1 decks
Experiment Kraj
0.09% of 1176 decks 1 decks
Momir Vig, Simic Visionary
0.10% of 1008 decks 1 decks
Alena, Kessig Trapper // Thrasios, Triton Hero
1.39% of 72 decks 1 decks
Kodama of the East Tree // Thrasios, Triton Hero
0.40% of 247 decks 1 decks
High Synergy Cards
Freed from the Real
62% of 32 decks +60% synergy
Training Grounds
56% of 32 decks +53% synergy
Pemmin's Aura
53% of 32 decks +52% synergy
Kiora's Follower
53% of 32 decks +47% synergy
Staff of Domination
44% of 32 decks +42% synergy
Gyre Engineer
41% of 32 decks +40% synergy
Kinnan, Bonder Prodigy
41% of 32 decks +37% synergy
Omen Hawker
37% of 19 decks +36% synergy
Ioreth of the Healing House
38% of 16 decks +36% synergy
Seedborn Muse
44% of 32 decks +35% synergy
Top Cards
Swords to Plowshares
80% of 5 decks +17% synergy
Cultivate
59% of 32 decks +13% synergy
Counterspell
56% of 32 decks +13% synergy
Birds of Paradise
50% of 32 decks +23% synergy
Kodama's Reach
50% of 32 decks +18% synergy
Rampant Growth
50% of 32 decks +15% synergy
Growth Spiral
47% of 32 decks +25% synergy
Beast Within
44% of 32 decks +5% synergy
Lightning Greaves
41% of 32 decks +15% synergy
Nature's Lore
41% of 32 decks +9% synergy
Creatures
Jegantha, the Wellspring
60% of 5 decks +54% synergy
Faeburrow Elder
60% of 5 decks +48% synergy
Incubation Druid
34% of 32 decks +29% synergy
Llanowar Elves
34% of 32 decks +13% synergy
Bedrock Tortoise
33% of 12 decks +32% synergy
Vizier of Tumbling Sands
28% of 32 decks +27% synergy
Murkfiend Liege
28% of 32 decks +24% synergy
Bloom Tender
28% of 32 decks +20% synergy
Koma, Cosmos Serpent
25% of 32 decks +20% synergy
Aesi, Tyrant of Gyre Strait
25% of 32 decks +19% synergy
Tatyova, Benthic Druid
25% of 32 decks +13% synergy
Elvish Mystic
25% of 32 decks +7% synergy
Kelpie Guide
23% of 31 decks +22% synergy
Laboratory Maniac
22% of 32 decks +17% synergy
Thassa's Oracle
22% of 32 decks +14% synergy
Fyndhorn Elves
22% of 32 decks +9% synergy
Arcanis the Omnipotent
19% of 32 decks +17% synergy
Maraleaf Pixie
19% of 32 decks +17% synergy
Ilysian Caryatid
19% of 32 decks +16% synergy
Walking Ballista
19% of 32 decks +16% synergy
Psychosis Crawler
19% of 32 decks +16% synergy
Nezahal, Primal Tide
19% of 32 decks +15% synergy
Azusa, Lost but Seeking
19% of 32 decks +11% synergy
Sakura-Tribe Elder
19% of 32 decks +0% synergy
Gretchen Titchwillow
17% of 30 decks +16% synergy
Hullbreaker Horror
17% of 30 decks +9% synergy
Spawning Kraken
16% of 31 decks +15% synergy
Ley Weaver
16% of 32 decks +15% synergy
Charix, the Raging Isle
16% of 32 decks +15% synergy
Tishana, Voice of Thunder
16% of 32 decks +14% synergy
Kruphix, God of Horizons
16% of 32 decks +14% synergy
Paradise Druid
16% of 32 decks +13% synergy
Hydroid Krasis
16% of 32 decks +11% synergy
Walking Bulwark
15% of 26 decks +15% synergy
Ornithopter of Paradise
13% of 30 decks +9% synergy
Tireless Provisioner
13% of 30 decks +2% synergy
Zimone, Quandrix Prodigy
13% of 31 decks +11% synergy
Knacksaw Clique
12% of 32 decks +12% synergy
Krosan Restorer
12% of 32 decks +12% synergy
Voyaging Satyr
12% of 32 decks +12% synergy
Vine Trellis
12% of 32 decks +12% synergy
Wall of Runes
12% of 32 decks +12% synergy
Fatestitcher
12% of 32 decks +12% synergy
Magus of the Candelabra
12% of 32 decks +12% synergy
Overgrown Battlement
12% of 32 decks +12% synergy
Tromokratis
12% of 32 decks +12% synergy
Serpent of Yawning Depths
12% of 32 decks +12% synergy
Wall of Roots
12% of 32 decks +12% synergy
Slinn Voda, the Rising Deep
12% of 32 decks +11% synergy
Crashing Drawbridge
12% of 32 decks +11% synergy
Instants
Generous Gift
60% of 5 decks +34% synergy
Archdruid's Charm
38% of 8 decks +30% synergy
Brainstorm
31% of 32 decks +10% synergy
Dramatic Reversal
28% of 32 decks +23% synergy
Negate
28% of 32 decks +5% synergy
Heroic Intervention
28% of 32 decks -2% synergy
Blue Sun's Zenith
19% of 32 decks +16% synergy
Pongify
19% of 32 decks +7% synergy
Worldly Tutor
19% of 32 decks +5% synergy
Arcane Denial
19% of 32 decks -1% synergy
Cyclonic Rift
19% of 32 decks -9% synergy
An Offer You Can't Refuse
17% of 30 decks -4% synergy
Return to Nature
16% of 32 decks +9% synergy
Frantic Search
16% of 32 decks +3% synergy
Rewind
12% of 32 decks +9% synergy
Simic Charm
12% of 32 decks +9% synergy
Fact or Fiction
12% of 32 decks +6% synergy
Nature's Claim
12% of 32 decks +3% synergy
Joint Exploration
12% of 26 decks +9% synergy
Resculpt
10% of 31 decks +4% synergy
Stroke of Genius
9% of 32 decks +8% synergy
Unwind
9% of 32 decks +6% synergy
Pull from Tomorrow
9% of 32 decks +6% synergy
Spell Pierce
9% of 32 decks +6% synergy
Muddle the Mixture
9% of 32 decks +4% synergy
Dig Through Time
9% of 32 decks +4% synergy
Pact of Negation
9% of 32 decks +2% synergy
Reality Shift
9% of 32 decks +0% synergy
Rapid Hybridization
9% of 32 decks +0% synergy
Return of the Wildspeaker
9% of 32 decks -4% synergy
Mystical Tutor
9% of 32 decks -6% synergy
Sorceries
Farseek
34% of 32 decks +0% synergy
Windfall
19% of 32 decks +6% synergy
Three Visits
19% of 32 decks -6% synergy
Whelming Wave
16% of 32 decks +14% synergy
Fabricate
16% of 32 decks +10% synergy
Finale of Devastation
16% of 32 decks +7% synergy
Body of Research
13% of 31 decks +12% synergy
Serum Visions
12% of 32 decks +8% synergy
Explore
12% of 32 decks +3% synergy
Rishkar's Expertise
12% of 32 decks +2% synergy
Preordain
12% of 32 decks +2% synergy
Finale of Revelation
9% of 32 decks +7% synergy
Traverse the Outlands
9% of 32 decks +7% synergy
Regrowth
9% of 32 decks +6% synergy
Urban Evolution
9% of 32 decks +5% synergy
Overwhelming Stampede
9% of 32 decks +4% synergy
Ponder
9% of 32 decks -4% synergy
Utility Artifacts
Swiftfoot Boots
38% of 32 decks +10% synergy
Sword of the Paruns
28% of 32 decks +28% synergy
Thousand-Year Elixir
28% of 32 decks +26% synergy
Conduit of Worlds
19% of 21 decks +12% synergy
Monster Manual
18% of 28 decks +15% synergy
Heartstone
16% of 32 decks +15% synergy
Illusionist's Bracers
16% of 32 decks +14% synergy
Isochron Scepter
12% of 32 decks +10% synergy
Moonsilver Key
10% of 30 decks +9% synergy
Fireshrieker
9% of 32 decks +8% synergy
Rings of Brighthearth
9% of 32 decks +8% synergy
Alhammarret's Archive
9% of 32 decks +7% synergy
Sensei's Divining Top
9% of 32 decks +4% synergy
The Great Henge
9% of 32 decks -1% synergy
Enchantments
Utopia Sprawl
22% of 32 decks +14% synergy
Wilderness Reclamation
19% of 32 decks +15% synergy
Leyline of Abundance
16% of 32 decks +14% synergy
Wizard Class
13% of 30 decks +9% synergy
Quest for Ula's Temple
12% of 32 decks +12% synergy
Intruder Alarm
12% of 32 decks +10% synergy
Ominous Seas
12% of 32 decks +10% synergy
Leyline of Anticipation
12% of 32 decks +8% synergy
Teferi's Ageless Insight
12% of 32 decks +7% synergy
Simic Ascendancy
12% of 32 decks +7% synergy
Treefolk Umbra
9% of 32 decks +9% synergy
Mana Reflection
9% of 32 decks +7% synergy
Retreat to Coralhelm
9% of 32 decks +7% synergy
Fertile Ground
9% of 32 decks +5% synergy
Aqueous Form
9% of 32 decks +5% synergy
Exploration
9% of 32 decks +1% synergy
Guardian Project
9% of 32 decks +1% synergy
Wild Growth
9% of 32 decks -2% synergy
Garruk's Uprising
9% of 32 decks -6% synergy
Planeswalkers
Tyvar, Jubilant Brawler
75% of 4 decks +70% synergy
Jace, Wielder of Mysteries
19% of 32 decks +15% synergy
Kiora, Behemoth Beckoner
19% of 32 decks +15% synergy
Kiora, Master of the Depths
12% of 32 decks +11% synergy
Utility Lands
Reliquary Tower
59% of 32 decks +30% synergy
Alchemist's Refuge
38% of 32 decks +31% synergy
Minamo, School at Water's Edge
22% of 32 decks +18% synergy
Yavimaya, Cradle of Growth
20% of 30 decks +11% synergy
Otawara, Soaring City
17% of 30 decks -0% synergy
Rogue's Passage
16% of 32 decks -4% synergy
Boseiju, Who Endures
13% of 30 decks -6% synergy
Mystic Sanctuary
12% of 32 decks +0% synergy
Access Tunnel
10% of 31 decks +8% synergy
Coral Atoll
9% of 32 decks +9% synergy
Lotus Field
9% of 32 decks +8% synergy
Thespian's Stage
9% of 32 decks +7% synergy
Castle Vantress
9% of 32 decks +5% synergy
Temple of the False God
9% of 32 decks -0% synergy
Mosswort Bridge
9% of 32 decks -1% synergy
Mana Artifacts
Sol Ring
81% of 32 decks -3% synergy
Arcane Signet
66% of 32 decks -6% synergy
Basalt Monolith
38% of 32 decks +35% synergy
Thought Vessel
34% of 32 decks +18% synergy
Talisman of Curiosity
28% of 32 decks +16% synergy
Simic Signet
22% of 32 decks +7% synergy
Fellwar Stone
22% of 32 decks +1% synergy
Decanter of Endless Water
21% of 28 decks +17% synergy
Gilded Lotus
16% of 32 decks +12% synergy
Chromatic Lantern
12% of 32 decks +3% synergy
Mox Amber
9% of 32 decks +5% synergy
Commander's Sphere
9% of 32 decks -6% synergy
Lands
Overflowing Basin
75% of 4 decks +64% synergy
Command Tower
72% of 32 decks -2% synergy
Hedge Maze
60% of 10 decks +46% synergy
Ziatora's Proving Ground
60% of 5 decks +28% synergy
Hinterland Harbor
59% of 32 decks +32% synergy
Ketria Triome
57% of 7 decks +25% synergy
Simic Growth Chamber
44% of 32 decks +24% synergy
Dimir Aqueduct
43% of 7 decks +26% synergy
Opulent Palace
43% of 7 decks +16% synergy
Frontier Bivouac
43% of 7 decks +15% synergy
Zagoth Triome
43% of 7 decks +12% synergy
Breeding Pool
41% of 32 decks -0% synergy
Escape Tunnel
38% of 8 decks +35% synergy
Dreamroot Cascade
37% of 30 decks +18% synergy
Yavimaya Coast
34% of 32 decks +8% synergy
Exotic Orchard
31% of 32 decks -4% synergy
Temple of Mystery
28% of 32 decks +11% synergy
Rejuvenating Springs
28% of 32 decks -1% synergy
Vineglimmer Snarl
26% of 31 decks +15% synergy
Evolving Wilds
22% of 32 decks +1% synergy
Tangled Islet
19% of 26 decks +12% synergy
Misty Rainforest
19% of 32 decks +7% synergy
Flooded Grove
19% of 32 decks +7% synergy
Terramorphic Expanse
19% of 32 decks +3% synergy
Myriad Landscape
19% of 32 decks -1% synergy
Botanical Sanctum
16% of 32 decks +12% synergy
Thornwood Falls
12% of 32 decks +5% synergy
Barkchannel Pathway
12% of 32 decks +4% synergy
Fabled Passage
12% of 32 decks +3% synergy
Rimewood Falls
9% of 32 decks +4% synergy
Waterlogged Grove
9% of 32 decks +2% synergy
Verdant Catacombs
9% of 32 decks -2% synergy