Blossoming Tortoise + Crackdown Construct + Mutavault

Blossoming Tortoise
Crackdown Construct
Mutavault

Requires
Blossoming Tortoise must be on the battlefield. Crackdown Construct must be on the battlefield. Mutavault must be on the battlefield.
Steps
  1. Activate Mutavault's second ability by paying 0, causing it to become a 2/2 creature with all creature types in addition to its other types until end of turn.
  2. Activate Mutavault's second ability by paying 0.
  3. Crackdown Construct triggers, giving itself +1/+1 until end of turn.
  4. Repeat from step 2.
Results
Infinitely large Crackdown Construct until end of turn.

Rocco, Cabaretti Caterer
0.03% of 5859 decks 2 decks
Child of Alara
0.04% of 5025 decks 2 decks
Soul of Windgrace
0.06% of 3169 decks 2 decks
Lord Windgrace
0.01% of 9108 decks 1 decks
Thalia and The Gitrog Monster
0.01% of 12491 decks 1 decks
Archelos, Lagoon Mystic
0.03% of 3380 decks 1 decks
Bilbo, Birthday Celebrant
0.02% of 4976 decks 1 decks
Zask, Skittering Swarmlord
0.02% of 4303 decks 1 decks
Peregrin Took
0.28% of 357 decks 1 decks
Esika, God of the Tree
0.01% of 17767 decks 1 decks
Gyrus, Waker of Corpses
0.11% of 887 decks 1 decks
High Synergy Cards
Restless Bivouac
100% of 4 decks +97% synergy
Draconic Destiny
89% of 9 decks +88% synergy
Blinkmoth Nexus
86% of 14 decks +85% synergy
Mishra's Factory
79% of 14 decks +78% synergy
Lavaclaw Reaches
71% of 7 decks +70% synergy
Inkmoth Nexus
64% of 14 decks +63% synergy
Stirring Wildwood
57% of 7 decks +56% synergy
Crucible of Worlds
57% of 14 decks +55% synergy
Ashaya, Soul of the Wild
57% of 14 decks +54% synergy
Raging Ravine
56% of 9 decks +53% synergy
Top Cards
Swords to Plowshares
86% of 7 decks +23% synergy
Generous Gift
71% of 7 decks +46% synergy
Crop Rotation
57% of 14 decks +47% synergy
Beast Within
57% of 14 decks +18% synergy
Path to Exile
57% of 7 decks +12% synergy
Ramunap Excavator
50% of 14 decks +43% synergy
Azusa, Lost but Seeking
50% of 14 decks +42% synergy
Worldly Tutor
50% of 14 decks +36% synergy
Kodama's Reach
50% of 14 decks +18% synergy
The Gitrog Monster
45% of 11 decks +40% synergy
Creatures
Skyshroud Elf
60% of 5 decks +60% synergy
Bog Initiate
36% of 11 decks +36% synergy
Hope Tender
36% of 14 decks +36% synergy
Elvish Reclaimer
36% of 14 decks +34% synergy
World Shaper
36% of 14 decks +33% synergy
Oracle of Mul Daya
36% of 14 decks +30% synergy
Lotus Cobra
36% of 14 decks +28% synergy
Scute Swarm
36% of 14 decks +26% synergy
Tireless Provisioner
36% of 14 decks +25% synergy
Titania, Protector of Argoth
29% of 14 decks +25% synergy
Ancient Greenwarden
29% of 14 decks +24% synergy
Rampaging Baloths
29% of 14 decks +22% synergy
Dryad of the Ilysian Grove
29% of 14 decks +21% synergy
Carrion Ants
27% of 11 decks +27% synergy
Misery's Shadow
27% of 11 decks +27% synergy
Tireless Tracker
21% of 14 decks +16% synergy
Avenger of Zendikar
21% of 14 decks +12% synergy
Sakura-Tribe Elder
21% of 14 decks +3% synergy
Birds of Paradise
21% of 14 decks -5% synergy
Instants
Archdruid's Charm
75% of 4 decks +68% synergy
Vampiric Tutor
45% of 11 decks +27% synergy
Enlightened Tutor
43% of 7 decks +25% synergy
Assassin's Trophy
36% of 11 decks +6% synergy
Fling
33% of 9 decks +31% synergy
Realms Uncharted
21% of 14 decks +20% synergy
Summoner's Pact
21% of 14 decks +20% synergy
Heroic Intervention
21% of 14 decks -8% synergy
Sorceries
Demonic Tutor
55% of 11 decks +32% synergy
Farseek
43% of 14 decks +9% synergy
Skyshroud Claim
36% of 14 decks +26% synergy
Nature's Lore
36% of 14 decks +4% synergy
Cultivate
36% of 14 decks -11% synergy
Blasphemous Act
33% of 9 decks -0% synergy
Splendid Reclamation
29% of 14 decks +25% synergy
Life from the Loam
29% of 14 decks +25% synergy
Three Visits
29% of 14 decks +4% synergy
Rampant Growth
29% of 14 decks -6% synergy
Summer Bloom
21% of 14 decks +20% synergy
Scapeshift
21% of 14 decks +19% synergy
Sylvan Scrying
21% of 14 decks +18% synergy
Utility Artifacts
Conduit of Worlds
43% of 14 decks +36% synergy
Expedition Map
36% of 14 decks +32% synergy
Lightning Greaves
21% of 14 decks -4% synergy
Enchantments
Exploration
43% of 14 decks +34% synergy
Sylvan Library
21% of 14 decks +10% synergy
Planeswalkers
Wrenn and Six
33% of 9 decks +32% synergy
Nissa, Who Shakes the World
21% of 14 decks +19% synergy
Utility Lands
Needle Spires
60% of 5 decks +58% synergy
Restless Cottage
36% of 11 decks +31% synergy
Thespian's Stage
36% of 14 decks +33% synergy
Crawling Barrens
29% of 14 decks +28% synergy
Mishra's Foundry
29% of 14 decks +28% synergy
Dark Depths
29% of 14 decks +27% synergy
Strip Mine
29% of 14 decks +26% synergy
Field of the Dead
29% of 14 decks +25% synergy
Dryad Arbor
29% of 14 decks +24% synergy
Yavimaya, Cradle of Growth
29% of 14 decks +19% synergy
Urborg, Tomb of Yawgmoth
29% of 14 decks +19% synergy
Boseiju, Who Endures
29% of 14 decks +9% synergy
Hissing Quagmire
27% of 11 decks +26% synergy
Treetop Village
21% of 14 decks +21% synergy
Vesuva
21% of 14 decks +20% synergy
Lair of the Hydra
21% of 14 decks +20% synergy
Ghost Quarter
21% of 14 decks +19% synergy
Mana Artifacts
Sol Ring
71% of 14 decks -13% synergy
Arcane Signet
43% of 14 decks -29% synergy
Lands
Command Tower
71% of 14 decks -2% synergy
Overgrown Tomb
55% of 11 decks +12% synergy
Verdant Catacombs
43% of 14 decks +31% synergy
Ziatora's Proving Ground
43% of 7 decks +11% synergy
Blood Crypt
43% of 7 decks +4% synergy
Stomping Ground
33% of 9 decks -8% synergy
Wooded Foothills
29% of 14 decks +18% synergy
Bloodstained Mire
29% of 14 decks +18% synergy
Windswept Heath
29% of 14 decks +18% synergy
Evolving Wilds
29% of 14 decks +8% synergy
Bayou
27% of 11 decks +14% synergy
Undergrowth Stadium
27% of 11 decks +1% synergy
Fabled Passage
21% of 14 decks +12% synergy