Experiment Kraj + Devoted Druid + Benevolent Hydra

Experiment Kraj
Devoted Druid
Benevolent Hydra

Requires
Experiment Kraj must be on the battlefield. Devoted Druid must be on the battlefield. Benevolent Hydra must be on the battlefield. Experiment Kraj does not have summoning sickness.
Steps
  1. Activate Experiment Kraj by tapping it, putting two +1/+1 counters onto Devoted Druid.
  2. Activate Experiment Kraj using Devoted Druid's last ability by putting a -1/-1 counter on itself, untapping it.
  3. Activate Experiment Kraj's own ability, putting two +1/+1 counters on itself.
  4. Remove the -1/-1 counter and one of the +1/+1 counters from Experiment Kraj as a state-based action.
  5. Repeat steps 2 through 4 any number of times, resulting in any number of +1/+1 counters on Experiment Kraj.
  6. Activate Experiment Kraj using Devoted Druid's last ability by putting a -1/-1 counter on itself, untapping it.
  7. Activate Experiment Kraj using Devoted Druid's first ability by tapping it, add g.
  8. Repeat steps 6 and 7 any number of times.
  9. You may also activate Experiment Kraj's own ability any number of times instead of step 7, putting any number of +1/+1 counters onto creatures.
Results
Infinite +1/+1 counters. Infinite green mana.

Top Commanders (3)
Experiment Kraj
0.34% of 1184 decks 4 decks
Vorel of the Hull Clade
0.10% of 1988 decks 2 decks
Falco Spara, Pactweaver
0.06% of 4891 decks 3 decks
High Synergy Cards (6)
Kami of Whispered Hopes
100% of 12 decks +96% synergy
Hardened Scales
93% of 15 decks +89% synergy
Master Biomancer
80% of 15 decks +79% synergy
Fathom Mage
80% of 15 decks +79% synergy
Gyre Sage
80% of 15 decks +78% synergy
Incubation Druid
80% of 15 decks +78% synergy
Top Cards (10)
Simic Ascendancy
73% of 15 decks +72% synergy
The Ozolith
73% of 15 decks +70% synergy
Forgotten Ancient
67% of 15 decks +64% synergy
Birds of Paradise
67% of 15 decks +55% synergy
Simic Manipulator
60% of 15 decks +60% synergy
Sage of Hours
60% of 15 decks +60% synergy
Branching Evolution
60% of 15 decks +58% synergy
Agatha's Soul Cauldron
60% of 10 decks +58% synergy
Inspiring Call
60% of 15 decks +57% synergy
Ozolith, the Shattered Spire
58% of 12 decks +55% synergy
Creatures (44)
Rishkar, Peema Renegade
53% of 15 decks +51% synergy
Walking Ballista
53% of 15 decks +51% synergy
The Thirteenth Doctor
50% of 6 decks +49% synergy
Biophagus
47% of 15 decks +46% synergy
Herald of Secret Streams
47% of 15 decks +45% synergy
Gilder Bairn
40% of 15 decks +40% synergy
Cytoplast Manipulator
40% of 15 decks +40% synergy
Vigean Graftmage
40% of 15 decks +40% synergy
Zameck Guildmage
40% of 15 decks +40% synergy
Hydroid Krasis
40% of 15 decks +39% synergy
Kiora's Follower
40% of 15 decks +39% synergy
Kodama of the West Tree
40% of 15 decks +38% synergy
Champion of Lambholt
40% of 15 decks +37% synergy
Benthic Biomancer
33% of 15 decks +33% synergy
Prime Speaker Zegana
33% of 15 decks +33% synergy
Vorel of the Hull Clade
33% of 15 decks +33% synergy
Managorger Hydra
33% of 15 decks +31% synergy
Vorinclex, Monstrous Raider
33% of 15 decks +31% synergy
Bloom Tender
33% of 15 decks +29% synergy
Toothy, Imaginary Friend
27% of 15 decks +26% synergy
Pir, Imaginative Rascal
27% of 15 decks +26% synergy
Biomancer's Familiar
27% of 15 decks +26% synergy
Murkfiend Liege
27% of 15 decks +26% synergy
Kalonian Hydra
27% of 15 decks +25% synergy
Selvala, Heart of the Wilds
27% of 15 decks +24% synergy
Seedborn Muse
27% of 15 decks +23% synergy
Ioreth of the Healing House
25% of 12 decks +24% synergy
Simic Ragworm
20% of 15 decks +20% synergy
Thornling
20% of 15 decks +20% synergy
Leech Bonder
20% of 15 decks +20% synergy
Morphling
20% of 15 decks +20% synergy
Horseshoe Crab
20% of 15 decks +20% synergy
Aeve, Progenitor Ooze
20% of 15 decks +20% synergy
Slogurk, the Overslime
20% of 15 decks +20% synergy
Experiment One
20% of 15 decks +20% synergy
Plaxcaster Frogling
20% of 15 decks +20% synergy
Pili-Pala
20% of 15 decks +20% synergy
Slippery Bogbonder
20% of 15 decks +19% synergy
Hangarback Walker
20% of 15 decks +19% synergy
Glen Elendra Archmage
20% of 15 decks +19% synergy
Marwyn, the Nurturer
20% of 15 decks +19% synergy
Thrummingbird
20% of 15 decks +18% synergy
Chasm Skulker
20% of 15 decks +18% synergy
Evolution Sage
20% of 15 decks +17% synergy
Instants (15)
Bioshift
47% of 15 decks +47% synergy
Cyclonic Rift
47% of 15 decks +32% synergy
Counterspell
47% of 15 decks +26% synergy
Vastwood Fortification
33% of 15 decks +33% synergy
Slip Out the Back
33% of 15 decks +32% synergy
Snakeskin Veil
33% of 15 decks +32% synergy
Brainstorm
33% of 15 decks +22% synergy
Heroic Intervention
33% of 15 decks +20% synergy
Beast Within
33% of 15 decks +14% synergy
Negate
27% of 15 decks +15% synergy
Serum Snare
25% of 12 decks +24% synergy
Plasm Capture
20% of 15 decks +20% synergy
Voidslime
20% of 15 decks +20% synergy
Rapid Hybridization
20% of 15 decks +15% synergy
Pongify
20% of 15 decks +14% synergy
Sorceries (9)
Damning Verdict
75% of 4 decks +74% synergy
Tezzeret's Gambit
27% of 15 decks +25% synergy
Cultivate
27% of 15 decks +4% synergy
Body of Research
20% of 15 decks +20% synergy
Turntimber Symbiosis
20% of 15 decks +19% synergy
Neoform
20% of 15 decks +19% synergy
Green Sun's Zenith
20% of 15 decks +17% synergy
Three Visits
20% of 15 decks +8% synergy
Kodama's Reach
20% of 15 decks +5% synergy
Utility Artifacts (5)
The Great Henge
53% of 15 decks +49% synergy
Thousand-Year Elixir
47% of 15 decks +44% synergy
Swiftfoot Boots
40% of 15 decks +12% synergy
Illusionist's Bracers
33% of 15 decks +32% synergy
Darksteel Reactor
20% of 15 decks +20% synergy
Enchantments (7)
Brokers Ascendancy
75% of 4 decks +74% synergy
Doubling Season
53% of 15 decks +49% synergy
Tribute to the World Tree
33% of 12 decks +29% synergy
Bred for the Hunt
27% of 15 decks +26% synergy
Mystic Remora
27% of 15 decks +18% synergy
Long List of the Ents
25% of 12 decks +25% synergy
Inexorable Tide
20% of 15 decks +19% synergy
Planeswalkers (2)
Jiang Yanggu, Wildcrafter
20% of 15 decks +20% synergy
Kiora, Behemoth Beckoner
20% of 15 decks +19% synergy
Utility Lands (14)
Oran-Rief, the Vastwood
47% of 15 decks +44% synergy
Otawara, Soaring City
47% of 15 decks +38% synergy
Boseiju, Who Endures
47% of 15 decks +37% synergy
Minamo, School at Water's Edge
40% of 15 decks +38% synergy
Llanowar Reborn
33% of 15 decks +32% synergy
Alchemist's Refuge
33% of 15 decks +32% synergy
Mosswort Bridge
33% of 15 decks +28% synergy
Karn's Bastion
33% of 15 decks +28% synergy
Maze of Ith
27% of 15 decks +24% synergy
Yavimaya, Cradle of Growth
27% of 15 decks +17% synergy
Dryad Arbor
20% of 15 decks +18% synergy
Gaea's Cradle
20% of 15 decks +17% synergy
Rogue's Passage
20% of 15 decks +1% synergy
Reliquary Tower
20% of 15 decks -9% synergy
Mana Artifacts (4)
Sol Ring
93% of 15 decks +9% synergy
Arcane Signet
47% of 15 decks -24% synergy
Simic Signet
20% of 15 decks +17% synergy
Liquimetal Torque
20% of 15 decks +16% synergy
Lands (26)
Spara's Headquarters
100% of 4 decks +96% synergy
Hallowed Fountain
100% of 4 decks +91% synergy
Command Tower
93% of 15 decks +20% synergy
Temple Garden
75% of 4 decks +66% synergy
Breeding Pool
73% of 15 decks +64% synergy
Misty Rainforest
67% of 15 decks +55% synergy
Exotic Orchard
53% of 15 decks +19% synergy
Flooded Grove
47% of 15 decks +44% synergy
Simic Growth Chamber
47% of 15 decks +42% synergy
Rejuvenating Springs
47% of 15 decks +40% synergy
Barkchannel Pathway
40% of 15 decks +38% synergy
Hinterland Harbor
40% of 15 decks +35% synergy
Yavimaya Coast
40% of 15 decks +34% synergy
Waterlogged Grove
33% of 15 decks +32% synergy
Reflecting Pool
33% of 15 decks +28% synergy
Fabled Passage
33% of 15 decks +24% synergy
Windswept Heath
33% of 15 decks +23% synergy
Temple of Mystery
27% of 15 decks +23% synergy
Dreamroot Cascade
27% of 15 decks +23% synergy
Prismatic Vista
27% of 15 decks +21% synergy
Wooded Foothills
27% of 15 decks +17% synergy
Flooded Strand
27% of 15 decks +17% synergy
Scalding Tarn
27% of 15 decks +16% synergy
Verdant Catacombs
27% of 15 decks +15% synergy
Mana Confluence
20% of 15 decks +12% synergy
City of Brass
20% of 15 decks +12% synergy