Splinter Twin
Devoted Druid
Cathars' Crusade
1

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Splinter Twin attached to Devoted Druid. Devoted Druid does not have summoning sickness.

   Steps

How does this combo work?
1
Activate Devoted Druid by tapping it, creating a token copy of it with haste.
2
When the Devoted Druid token enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
3
Activate the nontoken Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
4
Repeat.
5
Once you have infinite Devoted Druid tokens, you may tap them to get infinite .

   Results

What do I get from this combo?
Infinite creature tokens with haste
Infinite ETB
Infinite green mana
Infinite +1/+1 counters
Ghired, Mirror of the Wilds
0.09% of 3212 decks 3 decks
Marath, Will of the Wild
0.08% of 2629 decks 2 decks
Rocco, Cabaretti Caterer
0.03% of 6477 decks 2 decks
Jegantha, the Wellspring
0.07% of 1467 decks 1 decks
Kenrith, the Returned King
0.00% of 23940 decks 1 decks
Shalai and Hallar
0.01% of 10360 decks 1 decks
Baylen, the Haymaker
0.01% of 14598 decks 1 decks
Jinnie Fay, Jetmir's Second
0.02% of 5434 decks 1 decks
Marisi, Breaker of the Coil
0.02% of 4506 decks 1 decks
High Synergy Cards
Midnight Guard
77% of 13 decks +77% synergy
Herd Baloth
77% of 13 decks +76% synergy
Ivy Lane Denizen
77% of 13 decks +75% synergy
Scurry Oak
77% of 13 decks +75% synergy
Presence of Gond
69% of 13 decks +69% synergy
Elemental Mastery
62% of 13 decks +61% synergy
Heliod, Sun-Crowned
54% of 13 decks +51% synergy
Sunstrike Legionnaire
46% of 13 decks +46% synergy
Impact Tremors
54% of 13 decks +44% synergy
Rosie Cotton of South Lane
46% of 13 decks +43% synergy
Top Cards
Birds of Paradise
54% of 13 decks +26% synergy
Kiki-Jiki, Mirror Breaker
46% of 13 decks +43% synergy
Swords to Plowshares
46% of 13 decks -16% synergy
Purphoros, God of the Forge
38% of 13 decks +34% synergy
Llanowar Elves
38% of 13 decks +18% synergy
Earthcraft
31% of 13 decks +30% synergy
Umbral Mantle
31% of 13 decks +30% synergy
Village Bell-Ringer
31% of 13 decks +30% synergy
Goblin Bombardment
31% of 13 decks +25% synergy
Champion of Lambholt
31% of 13 decks +24% synergy
Game Changers
Worldly Tutor
31% of 13 decks +17% synergy
Enlightened Tutor
31% of 13 decks +14% synergy
Teferi's Protection
23% of 13 decks +4% synergy
Creatures
Avacyn's Pilgrim
31% of 13 decks +17% synergy
Elvish Mystic
31% of 13 decks +13% synergy
Esper Sentinel
31% of 13 decks +11% synergy
Vizier of Remedies
23% of 13 decks +23% synergy
Hyrax Tower Scout
23% of 13 decks +23% synergy
Triskelion
23% of 13 decks +23% synergy
Zealous Conscripts
23% of 13 decks +21% synergy
Krenko, Mob Boss
23% of 13 decks +21% synergy
Magda, Brazen Outlaw
23% of 13 decks +21% synergy
Felidar Guardian
23% of 13 decks +21% synergy
Walking Ballista
23% of 13 decks +21% synergy
Restoration Angel
23% of 13 decks +21% synergy
Prosperous Innkeeper
23% of 13 decks +21% synergy
Good-Fortune Unicorn
23% of 13 decks +20% synergy
Witty Roastmaster
23% of 13 decks +20% synergy
Jaheira, Friend of the Forest
23% of 13 decks +18% synergy
Arbor Elf
23% of 13 decks +17% synergy
Kami of Whispered Hopes
23% of 13 decks +16% synergy
Mondrak, Glory Dominus
23% of 13 decks +15% synergy
Instants
Eladamri's Call
31% of 13 decks +20% synergy
Generous Gift
31% of 13 decks +6% synergy
Heroic Intervention
31% of 13 decks +1% synergy
Beast Within
31% of 13 decks -6% synergy
Path to Exile
31% of 13 decks -16% synergy
Benefactor's Draught
23% of 13 decks +23% synergy
Aura Mutation
23% of 13 decks +20% synergy
Artifact Mutation
23% of 13 decks +19% synergy
Second Harvest
23% of 13 decks +18% synergy
Sorceries
Rampant Growth
31% of 13 decks -4% synergy
Farseek
31% of 13 decks -4% synergy
Cultivate
31% of 13 decks -14% synergy
Nature's Lore
23% of 13 decks -9% synergy
Blasphemous Act
23% of 13 decks -10% synergy
Utility Artifacts
Blade of the Bloodchief
23% of 13 decks +22% synergy
Altar of Dementia
23% of 13 decks +20% synergy
Helm of the Host
23% of 13 decks +20% synergy
Phyrexian Altar
23% of 13 decks +19% synergy
Ozolith, the Shattered Spire
23% of 13 decks +18% synergy
Ashnod's Altar
23% of 13 decks +16% synergy
Enchantments
Cryptolith Rite
23% of 13 decks +20% synergy
Parallel Lives
23% of 13 decks +16% synergy
Utopia Sprawl
23% of 13 decks +15% synergy
Hardened Scales
23% of 13 decks +14% synergy
Wild Growth
23% of 13 decks +12% synergy
Utility Lands
Yavimaya, Cradle of Growth
38% of 13 decks +29% synergy
Boseiju, Who Endures
23% of 13 decks +4% synergy
Mana Artifacts
Arcane Signet
62% of 13 decks -11% synergy
Sol Ring
62% of 13 decks -23% synergy
Lands
Command Tower
100% of 13 decks +26% synergy
Jetmir's Garden
69% of 13 decks +38% synergy
Stomping Ground
62% of 13 decks +21% synergy
Temple Garden
54% of 13 decks +14% synergy
Arid Mesa
46% of 13 decks +36% synergy
Wooded Foothills
46% of 13 decks +36% synergy
Karplusan Forest
46% of 13 decks +28% synergy
Battlefield Forge
46% of 13 decks +20% synergy
Jungle Shrine
46% of 13 decks +14% synergy
Sacred Foundry
46% of 13 decks +11% synergy
Exotic Orchard
46% of 13 decks +10% synergy
City of Brass
38% of 13 decks +31% synergy
Windswept Heath
38% of 13 decks +28% synergy
Brushland
38% of 13 decks +21% synergy
Rockfall Vale
38% of 13 decks +17% synergy
Bountiful Promenade
38% of 13 decks +15% synergy
Canopy Vista
38% of 13 decks +2% synergy
Lush Portico
38% of 8 decks +28% synergy
Commercial District
38% of 8 decks +28% synergy
Mana Confluence
31% of 13 decks +24% synergy
Savannah
31% of 13 decks +18% synergy
Taiga
31% of 13 decks +18% synergy
Fortified Village
31% of 13 decks +15% synergy
Game Trail
31% of 13 decks +15% synergy
Cinder Glade
31% of 13 decks -8% synergy
Prismatic Vista
23% of 13 decks +18% synergy
Bloodstained Mire
23% of 13 decks +12% synergy
Scalding Tarn
23% of 13 decks +12% synergy
Verdant Catacombs
23% of 13 decks +12% synergy
Misty Rainforest
23% of 13 decks +12% synergy
Plateau
23% of 13 decks +11% synergy
Temple of Plenty
23% of 13 decks +10% synergy
Temple of Abandon
23% of 13 decks +9% synergy
Sundown Pass
23% of 13 decks +8% synergy
Overgrown Farmland
23% of 13 decks +7% synergy
Temple of Triumph
23% of 13 decks +6% synergy
Spire Garden
23% of 13 decks -1% synergy
Spectator Seating
23% of 13 decks -1% synergy
Sunpetal Grove
23% of 13 decks -2% synergy
Clifftop Retreat
23% of 13 decks -8% synergy