Gilder Bairn + Song of Freyalise + Biomancer's Familiar

Gilder Bairn
Song of Freyalise
Biomancer's Familiar

Requires
Gilder Bairn must be on the battlefield. Song of Freyalise must be on the battlefield. Biomancer's Familiar must be on the battlefield. Gilder Bairn does not have summoning sickness. Song of Freyalise has exactly one or two lore counters on it.
Steps
  1. Activate Gilder Bairn by tapping it, adding gu.
  2. Activate Gilder Bairn by paying gu and untapping it, doubling each counter on target permanent.
  3. Repeat.
Results
Infinite proliferate.

Experiment Kraj
0.68% of 1176 decks 8 decks
Animar, Soul of Elements
0.01% of 15877 decks 1 decks
Elmar, Ulvenwald Informant // Hargilde, Kindly Runechanter
0.18% of 564 decks 1 decks
Ezuri, Stalker of Spheres
0.03% of 3420 decks 1 decks
Falco Spara, Pactweaver
0.02% of 4602 decks 1 decks
Roalesk, Apex Hybrid
0.17% of 591 decks 1 decks
High Synergy Cards
Incubation Druid
77% of 13 decks +72% synergy
Kami of Whispered Hopes
78% of 9 decks +70% synergy
Sage of Hours
69% of 13 decks +69% synergy
Rishkar, Peema Renegade
69% of 13 decks +65% synergy
Simic Ascendancy
69% of 13 decks +64% synergy
Gyre Sage
62% of 13 decks +58% synergy
Pili-Pala
54% of 13 decks +53% synergy
Kiora's Follower
54% of 13 decks +48% synergy
Evolution Sage
54% of 13 decks +47% synergy
Horseshoe Crab
46% of 13 decks +46% synergy
Top Cards
Fertilid
46% of 13 decks +44% synergy
Vorel of the Hull Clade
46% of 13 decks +43% synergy
Training Grounds
46% of 13 decks +43% synergy
Scavenging Ooze
46% of 13 decks +43% synergy
Fathom Mage
46% of 13 decks +42% synergy
Inspiring Call
46% of 13 decks +39% synergy
Counterspell
46% of 13 decks +3% synergy
Cultivate
46% of 13 decks -0% synergy
Vigean Graftmage
38% of 13 decks +38% synergy
Zameck Guildmage
38% of 13 decks +38% synergy
Creatures
Ioreth of the Healing House
50% of 6 decks +48% synergy
Gyre Engineer
38% of 13 decks +37% synergy
Plaxcaster Frogling
38% of 13 decks +37% synergy
Master Biomancer
38% of 13 decks +35% synergy
Murkfiend Liege
38% of 13 decks +34% synergy
Forgotten Ancient
38% of 13 decks +32% synergy
Champion of Lambholt
38% of 13 decks +31% synergy
Defiler of Vigor
33% of 12 decks +29% synergy
Quicksilver Elemental
31% of 13 decks +31% synergy
Cytoplast Manipulator
31% of 13 decks +31% synergy
Combine Guildmage
31% of 13 decks +31% synergy
Momir Vig, Simic Visionary
31% of 13 decks +30% synergy
Arcanis the Omnipotent
31% of 13 decks +29% synergy
Walking Ballista
31% of 13 decks +28% synergy
Herald of Secret Streams
31% of 13 decks +28% synergy
Devoted Druid
31% of 13 decks +28% synergy
Llanowar Elves
31% of 13 decks +10% synergy
Simic Manipulator
23% of 13 decks +23% synergy
Argothian Elder
23% of 13 decks +23% synergy
Triskelion
23% of 13 decks +23% synergy
Renata, Called to the Hunt
23% of 13 decks +21% synergy
Paradise Druid
23% of 13 decks +21% synergy
Prime Speaker Zegana
23% of 13 decks +20% synergy
Managorger Hydra
23% of 13 decks +19% synergy
Bloom Tender
23% of 13 decks +15% synergy
Seedborn Muse
23% of 13 decks +15% synergy
Instants
Beast Within
38% of 13 decks -0% synergy
Reject Imperfection
33% of 9 decks +32% synergy
Harrow
23% of 13 decks +13% synergy
Worldly Tutor
23% of 13 decks +9% synergy
Growth Spiral
23% of 13 decks +1% synergy
Negate
23% of 13 decks +0% synergy
Cyclonic Rift
23% of 13 decks -5% synergy
Sorceries
Kodama's Reach
38% of 13 decks +7% synergy
Rampant Growth
38% of 13 decks +4% synergy
Tezzeret's Gambit
31% of 13 decks +27% synergy
Green Sun's Zenith
23% of 13 decks +17% synergy
Farseek
23% of 13 decks -11% synergy
Utility Artifacts
Swiftfoot Boots
38% of 13 decks +11% synergy
Ichormoon Gauntlet
27% of 11 decks +25% synergy
The Ozolith
25% of 12 decks +22% synergy
Illusionist's Bracers
23% of 13 decks +22% synergy
Thousand-Year Elixir
23% of 13 decks +21% synergy
The Great Henge
23% of 13 decks +13% synergy
Enchantments
Hardened Scales
38% of 13 decks +30% synergy
Cryptolith Rite
31% of 13 decks +27% synergy
Fight Rigging
25% of 12 decks +24% synergy
Master Chef
25% of 12 decks +23% synergy
Retreat to Kazandu
23% of 13 decks +21% synergy
Doubling Season
23% of 13 decks +14% synergy
Planeswalkers
Jiang Yanggu, Wildcrafter
31% of 13 decks +30% synergy
Utility Lands
Reliquary Tower
38% of 13 decks +9% synergy
Llanowar Reborn
31% of 13 decks +29% synergy
Oran-Rief, the Vastwood
31% of 13 decks +26% synergy
Karn's Bastion
31% of 13 decks +26% synergy
Alchemist's Refuge
23% of 13 decks +16% synergy
Mana Artifacts
Sol Ring
77% of 13 decks -8% synergy
Arcane Signet
62% of 13 decks -10% synergy
Everflowing Chalice
31% of 13 decks +26% synergy
Astral Cornucopia
23% of 13 decks +22% synergy
Simic Signet
23% of 13 decks +9% synergy
Thought Vessel
23% of 13 decks +6% synergy
Lands
Command Tower
69% of 13 decks -5% synergy
Yavimaya Coast
54% of 13 decks +27% synergy
Simic Growth Chamber
38% of 13 decks +19% synergy
Evolving Wilds
38% of 13 decks +17% synergy
Exotic Orchard
38% of 13 decks +3% synergy
Dreamroot Cascade
33% of 12 decks +15% synergy
Flooded Grove
31% of 13 decks +19% synergy
Terramorphic Expanse
31% of 13 decks +15% synergy
Temple of Mystery
31% of 13 decks +13% synergy
Myriad Landscape
31% of 13 decks +11% synergy
Hinterland Harbor
31% of 13 decks +4% synergy
Breeding Pool
31% of 13 decks -10% synergy
Hall of Oracles
25% of 12 decks +25% synergy
Littjara Mirrorlake
25% of 12 decks +23% synergy
Barkchannel Pathway
25% of 12 decks +16% synergy
Vineglimmer Snarl
25% of 12 decks +15% synergy
Rejuvenating Springs
25% of 12 decks -4% synergy
Waterlogged Grove
23% of 13 decks +16% synergy
Fabled Passage
23% of 13 decks +14% synergy