Ugin, the Ineffable + Cloud Key + Primordial Mist

Ugin, the Ineffable
Cloud Key
Primordial Mist

Requires
Ugin, the Ineffable must be on the battlefield. Cloud Key must be on the battlefield. Primordial Mist must be on the battlefield. You have a creature card in hand that has Morph or Megamorph. "Creature" chosen with Cloud Key.
Steps
  1. Cast the creature using its morph or megamorph cost by paying 0, putting it face-down on the battlefield as a 3/3 creature.
  2. Activate Primordial Mist by exiling the face down creature face up, allowing you to cast it this turn.
  3. Repeat.
Results
Infinite ETB. Infinite LTB. Infinite storm count.

Ixidor, Reality Sculptor
27.71% of 249 decks 69 decks
Kadena, Slinking Sorcerer
1.17% of 5484 decks 64 decks
Volo, Guide to Monsters
0.26% of 7327 decks 19 decks
Top Cards
Ainok Survivalist
94% of 108 decks +94% synergy
Den Protector
94% of 108 decks +94% synergy
Obscuring Aether
93% of 108 decks +92% synergy
Hidden Dragonslayer
92% of 13 decks +92% synergy
Willbender
92% of 189 decks +92% synergy
Ugin's Mastery
91% of 117 decks +90% synergy
Kadena's Silencer
90% of 189 decks +90% synergy
True Identity
89% of 9 decks +89% synergy
Nantuko Vigilante
89% of 108 decks +89% synergy
Kheru Spellsnatcher
88% of 189 decks +88% synergy
Creatures
Kaust, Eyes of the Glade
100% of 3 decks +100% synergy
Vesuvan Shapeshifter
88% of 189 decks +88% synergy
Grim Haruspex
88% of 77 decks +86% synergy
Icefeather Aven
88% of 108 decks +88% synergy
Stratus Dancer
87% of 189 decks +87% synergy
Chromeshell Crab
83% of 189 decks +82% synergy
Ixidron
81% of 189 decks +81% synergy
Pyrotechnic Performer
80% of 5 decks +80% synergy
Boltbender
80% of 5 decks +80% synergy
Experiment Twelve
80% of 45 decks +80% synergy
Rattleclaw Mystic
80% of 5 decks +80% synergy
Printlifter Ooze
80% of 45 decks +80% synergy
Thousand Winds
76% of 189 decks +76% synergy
Brine Elemental
75% of 189 decks +75% synergy
Yarus, Roar of the Old Gods
75% of 4 decks +75% synergy
Roshan, Hidden Magister
75% of 8 decks +73% synergy
Bane of the Living
74% of 77 decks +74% synergy
Voidmage Apprentice
72% of 189 decks +72% synergy
Mischievous Quanar
71% of 189 decks +71% synergy
Jasmine Boreal of the Seven
69% of 13 decks +69% synergy
Yedora, Grave Gardener
69% of 105 decks +68% synergy
Silumgar Assassin
66% of 77 decks +66% synergy
Vannifar, Evolved Enigma
65% of 46 decks +65% synergy
Beast Whisperer
62% of 108 decks +56% synergy
Aphetto Runecaster
62% of 189 decks +62% synergy
Exit Specialist
61% of 75 decks +61% synergy
Deathmist Raptor
61% of 108 decks +61% synergy
Echo Tracer
59% of 189 decks +59% synergy
Kozilek, the Broken Reality
59% of 29 decks +57% synergy
Unyielding Gatekeeper
56% of 9 decks +55% synergy
Aurelia's Vindicator
56% of 9 decks +55% synergy
Hooded Hydra
56% of 108 decks +55% synergy
Frontline Strategist
54% of 13 decks +54% synergy
Weaver of Lies
53% of 189 decks +53% synergy
Coveted Falcon
53% of 59 decks +52% synergy
Seedborn Muse
52% of 108 decks +48% synergy
Thieving Amalgam
49% of 77 decks +49% synergy
Whisperwood Elemental
49% of 108 decks +49% synergy
Unblinking Bleb
48% of 189 decks +48% synergy
Aven Liberator
46% of 13 decks +46% synergy
Daru Mender
46% of 13 decks +46% synergy
Master of Pearls
46% of 13 decks +46% synergy
Noble Hierarch
46% of 13 decks +44% synergy
Master of the Veil
45% of 189 decks +45% synergy
Skirk Alarmist
44% of 9 decks +44% synergy
Skinthinner
44% of 77 decks +44% synergy
Salt Road Ambushers
43% of 108 decks +42% synergy
Mistfire Weaver
42% of 189 decks +42% synergy
Greenbelt Radical
42% of 45 decks +42% synergy
Riptide Entrancer
40% of 189 decks +40% synergy
Instants
Become Anonymous
79% of 19 decks +78% synergy
Reality Shift
62% of 189 decks +58% synergy
Unexplained Absence
56% of 9 decks +55% synergy
Swords to Plowshares
54% of 13 decks +25% synergy
Path to Exile
46% of 13 decks +26% synergy
Backslide
38% of 189 decks +38% synergy
Cyber Conversion
36% of 85 decks +36% synergy
Chaos Warp
33% of 9 decks +18% synergy
Beast Within
33% of 108 decks +15% synergy
Counterspell
32% of 189 decks +11% synergy
Rapid Hybridization
26% of 189 decks +21% synergy
High Tide
21% of 189 decks +19% synergy
Pongify
21% of 189 decks +15% synergy
Familiar's Ruse
20% of 189 decks +20% synergy
Putrefy
20% of 66 decks +16% synergy
Growth Spiral
19% of 108 decks +15% synergy
Brainstorm
19% of 189 decks +8% synergy
Cyclonic Rift
19% of 189 decks +5% synergy
Evacuation
18% of 189 decks +17% synergy
Sudden Substitution
16% of 189 decks +16% synergy
Arcane Denial
16% of 189 decks +6% synergy
Vampiric Tutor
14% of 77 decks +5% synergy
An Offer You Can't Refuse
12% of 170 decks +2% synergy
Sultai Charm
11% of 66 decks +10% synergy
Assassin's Trophy
11% of 66 decks +4% synergy
Paradoxical Outcome
9% of 189 decks +9% synergy
Ixidor's Will
8% of 189 decks +8% synergy
Heroic Intervention
8% of 108 decks -5% synergy
Aetherspouts
8% of 189 decks +7% synergy
Dark Ritual
8% of 77 decks -3% synergy
Biomass Mutation
7% of 108 decks +7% synergy
Worldly Tutor
7% of 108 decks +1% synergy
Infernal Grasp
7% of 73 decks +3% synergy
Malakir Rebirth
7% of 75 decks +2% synergy
Aetherize
6% of 189 decks +4% synergy
Negate
6% of 189 decks -5% synergy
Saw It Coming
6% of 185 decks +5% synergy
Swan Song
6% of 189 decks -2% synergy
Return of the Wildspeaker
6% of 108 decks -1% synergy
Hagra Mauling
5% of 75 decks +4% synergy
Fact or Fiction
5% of 189 decks +2% synergy
Deadly Rollick
5% of 76 decks -0% synergy
Sorceries
Dusk // Dawn
69% of 13 decks +68% synergy
Ghastly Conscription
51% of 77 decks +50% synergy
Nature's Lore
46% of 108 decks +31% synergy
Farseek
43% of 108 decks +27% synergy
Rampant Growth
42% of 108 decks +25% synergy
Cultivate
38% of 108 decks +16% synergy
Three Visits
37% of 108 decks +25% synergy
Hide in Plain Sight
35% of 37 decks +35% synergy
Write into Being
32% of 189 decks +32% synergy
Retribution of the Meek
31% of 13 decks +31% synergy
All Is Dust
28% of 189 decks +26% synergy
Kodama's Reach
20% of 108 decks +5% synergy
Preordain
18% of 189 decks +12% synergy
Ravenform
18% of 185 decks +16% synergy
Shamanic Revelation
17% of 108 decks +12% synergy
Overwhelming Stampede
16% of 108 decks +13% synergy
Ponder
15% of 189 decks +9% synergy
Primal Growth
14% of 108 decks +13% synergy
Step Through
13% of 181 decks +13% synergy
Demonic Tutor
13% of 77 decks +1% synergy
Villainous Wealth
12% of 66 decks +11% synergy
Bala Ged Recovery
11% of 106 decks +7% synergy
Tendrils of Agony
10% of 77 decks +10% synergy
Tempt with Discovery
9% of 108 decks +7% synergy
Explore
8% of 108 decks +4% synergy
Mythos of Brokkos
8% of 64 decks +8% synergy
Spectral Deluge
8% of 185 decks +7% synergy
Triumph of the Hordes
7% of 108 decks +6% synergy
Profane Tutor
7% of 74 decks +5% synergy
Feed the Swarm
7% of 75 decks -3% synergy
Diabolic Tutor
6% of 77 decks +3% synergy
Road of Return
6% of 108 decks +6% synergy
Fabricate
5% of 189 decks +2% synergy
Grim Tutor
5% of 77 decks +3% synergy
Utility Artifacts
Dream Chisel
87% of 189 decks +87% synergy
Panoptic Projektor
85% of 74 decks +85% synergy
Scroll of Fate
76% of 189 decks +76% synergy
Cryptic Coat
47% of 75 decks +46% synergy
Crystal Shard
43% of 189 decks +42% synergy
Semblance Anvil
41% of 189 decks +40% synergy
Forsaken Monument
37% of 185 decks +35% synergy
Mystic Forge
30% of 189 decks +27% synergy
Cloudstone Curio
26% of 189 decks +25% synergy
Heartstone
26% of 189 decks +25% synergy
Helm of Awakening
20% of 189 decks +19% synergy
Vedalken Orrery
20% of 189 decks +19% synergy
Cybership
20% of 85 decks +20% synergy
Wayfarer's Bauble
16% of 189 decks +5% synergy
Lightning Greaves
16% of 189 decks -10% synergy
Swiftfoot Boots
12% of 189 decks -16% synergy
Ashnod's Altar
10% of 189 decks +2% synergy
Bident of Thassa
10% of 189 decks +6% synergy
Lifecrafter's Bestiary
9% of 108 decks +7% synergy
The Great Henge
9% of 108 decks +5% synergy
Strionic Resonator
8% of 189 decks +5% synergy
Bolas's Citadel
8% of 77 decks +3% synergy
Erratic Portal
7% of 189 decks +7% synergy
Symmetry Matrix
7% of 129 decks +7% synergy
Sensei's Divining Top
6% of 189 decks +0% synergy
Enchantments
Secret Plans
77% of 108 decks +77% synergy
Trail of Mystery
76% of 108 decks +76% synergy
Gift of Doom
71% of 77 decks +71% synergy
Mastery of the Unseen
62% of 13 decks +61% synergy
Veiled Ascension
56% of 9 decks +55% synergy
Wilderness Reclamation
46% of 108 decks +45% synergy
Guardian Project
44% of 108 decks +39% synergy
Equilibrium
42% of 189 decks +42% synergy
Heartless Summoning
34% of 77 decks +33% synergy
Training Grounds
32% of 189 decks +31% synergy
Leyline of Anticipation
31% of 189 decks +29% synergy
Growing Rites of Itlimoc
28% of 108 decks +25% synergy
Cloudform
24% of 189 decks +24% synergy
Death in Heaven
24% of 25 decks +24% synergy
Muraganda Petroglyphs
20% of 108 decks +20% synergy
Beastmaster Ascension
17% of 108 decks +14% synergy
Elven Chorus
16% of 70 decks +13% synergy
Cryptolith Rite
14% of 108 decks +12% synergy
Rhystic Study
13% of 189 decks -1% synergy
Zendikar Resurgent
9% of 108 decks +8% synergy
Words of Wind
8% of 189 decks +8% synergy
Propaganda
7% of 189 decks +2% synergy
Mystic Remora
7% of 189 decks -1% synergy
Burgeoning
6% of 108 decks +5% synergy
Imprisoned in the Moon
6% of 189 decks +4% synergy
Planeswalkers
Vivien, Champion of the Wilds
41% of 108 decks +40% synergy
Tezzeret, Cruel Machinist
5% of 189 decks +5% synergy
Ugin, the Spirit Dragon
5% of 189 decks +4% synergy
Utility Lands
Zoetic Cavern
79% of 189 decks +79% synergy
Branch of Vitu-Ghazi
75% of 76 decks +75% synergy
Alchemist's Refuge
55% of 108 decks +53% synergy
Reliquary Tower
53% of 189 decks +24% synergy
Tomb of the Spirit Dragon
48% of 189 decks +47% synergy
Bojuka Bog
39% of 77 decks +23% synergy
Riptide Laboratory
32% of 189 decks +31% synergy
Shrine of the Forsaken Gods
30% of 189 decks +28% synergy
Mystic Sanctuary
26% of 189 decks +20% synergy
Restless Vinestalk
26% of 47 decks +25% synergy
Temple of the False God
18% of 189 decks +8% synergy
Novijen, Heart of Progress
17% of 108 decks +16% synergy
Castle Vantress
13% of 189 decks +11% synergy
Lonely Sandbar
13% of 189 decks +11% synergy
Lumbering Falls
12% of 108 decks +11% synergy
Ruins of Oran-Rief
11% of 189 decks +11% synergy
Otawara, Soaring City
11% of 174 decks +3% synergy
Boseiju, Who Endures
10% of 97 decks +1% synergy
Scavenger Grounds
10% of 189 decks +7% synergy
War Room
10% of 185 decks +3% synergy
Rogue's Passage
10% of 189 decks -10% synergy
Homeward Path
8% of 189 decks +6% synergy
Terrain Generator
7% of 189 decks +6% synergy
Ancient Tomb
7% of 189 decks -3% synergy
Academy Ruins
7% of 189 decks +4% synergy
Thespian's Stage
7% of 189 decks +4% synergy
Yavimaya, Cradle of Growth
6% of 181 decks -3% synergy
Mosswort Bridge
6% of 108 decks +1% synergy
Halimar Depths
5% of 189 decks +4% synergy
Mana Artifacts
Sol Ring
89% of 189 decks +5% synergy
Arcane Signet
66% of 189 decks -6% synergy
Thought Vessel
33% of 189 decks +16% synergy
Talisman of Curiosity
29% of 108 decks +26% synergy
Simic Signet
27% of 108 decks +24% synergy
Talisman of Dominance
26% of 77 decks +18% synergy
Mind Stone
26% of 189 decks +8% synergy
Dimir Signet
23% of 77 decks +16% synergy
Thran Dynamo
22% of 189 decks +17% synergy
Talisman of Resilience
20% of 66 decks +17% synergy
Golgari Signet
18% of 66 decks +15% synergy
Sky Diamond
11% of 189 decks +8% synergy
Midnight Clock
10% of 189 decks +7% synergy
Fellwar Stone
8% of 189 decks -13% synergy
Hedron Archive
6% of 189 decks +3% synergy
Commander's Sphere
6% of 189 decks -10% synergy
Lands
Temple Garden
69% of 13 decks +60% synergy
Crumbling Necropolis
67% of 6 decks +63% synergy
Dragonskull Summit
67% of 6 decks +60% synergy
Spara's Headquarters
62% of 13 decks +58% synergy
Yavimaya Coast
61% of 108 decks +55% synergy
Cragcrown Pathway
60% of 5 decks +58% synergy
Karplusan Forest
60% of 5 decks +56% synergy
Rockfall Vale
60% of 5 decks +55% synergy
Rootbound Crag
60% of 5 decks +55% synergy
Opulent Palace
59% of 66 decks +56% synergy
Llanowar Wastes
59% of 66 decks +54% synergy
Command Tower
56% of 189 decks -18% synergy
Shivan Reef
56% of 9 decks +49% synergy
Sunpetal Grove
54% of 13 decks +49% synergy
Hallowed Fountain
54% of 13 decks +45% synergy
Sunken Hollow
51% of 77 decks +42% synergy
Haunted Ridge
50% of 6 decks +46% synergy
Stormcarved Coast
50% of 8 decks +46% synergy
Sulfurous Springs
50% of 6 decks +46% synergy
Smoldering Marsh
50% of 6 decks +43% synergy
Zagoth Triome
47% of 64 decks +43% synergy
Hinterland Harbor
46% of 108 decks +41% synergy
Seaside Citadel
46% of 13 decks +43% synergy
Selesnya Sanctuary
46% of 13 decks +43% synergy
Glacial Fortress
46% of 13 decks +41% synergy
Canopy Vista
46% of 13 decks +38% synergy
Sulfur Falls
44% of 9 decks +38% synergy
Simic Growth Chamber
44% of 108 decks +39% synergy
Rejuvenating Springs
43% of 106 decks +37% synergy
Overgrown Tomb
41% of 66 decks +32% synergy
Dreamroot Cascade
40% of 100 decks +36% synergy
Breeding Pool
39% of 108 decks +30% synergy
Azorius Chancery
38% of 13 decks +35% synergy
Bountiful Promenade
38% of 13 decks +33% synergy
Myriad Landscape
37% of 189 decks +16% synergy
Watery Grave
32% of 77 decks +22% synergy
Darkwater Catacombs
31% of 77 decks +27% synergy
Sea of Clouds
31% of 13 decks +25% synergy
Prairie Stream
31% of 13 decks +23% synergy
Flooded Grove
31% of 108 decks +28% synergy
Exotic Orchard
29% of 189 decks -6% synergy
Underground River
27% of 77 decks +23% synergy
Undergrowth Stadium
25% of 64 decks +19% synergy
Dimir Aqueduct
25% of 77 decks +20% synergy
Drowned Catacomb
25% of 77 decks +18% synergy
Woodland Cemetery
24% of 66 decks +19% synergy
Morphic Pool
23% of 77 decks +17% synergy
Brushland
23% of 13 decks +20% synergy
Adarkar Wastes
23% of 13 decks +20% synergy
Golgari Rot Farm
23% of 66 decks +19% synergy