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
26.91% of 275 decks 74 decks
Kadena, Slinking Sorcerer
1.09% of 6169 decks 67 decks
Volo, Guide to Monsters
0.29% of 7535 decks 22 decks
Chulane, Teller of Tales
0.14% of 7344 decks 10 decks
Ezuri, Claw of Progress
0.10% of 6258 decks 6 decks
Etrata, Deadly Fugitive
0.26% of 1924 decks 5 decks
Missy
0.22% of 1781 decks 4 decks
Omnath, Locus of All
0.02% of 12969 decks 2 decks
Barrin, Master Wizard
0.65% of 153 decks 1 decks
Vela the Night-Clad
0.15% of 683 decks 1 decks
Satoru, the Infiltrator
0.08% of 1256 decks 1 decks
Kruphix, God of Horizons
0.03% of 3079 decks 1 decks
Illuna, Apex of Wishes
0.04% of 2848 decks 1 decks
Atraxa, Grand Unifier
0.01% of 14209 decks 1 decks
Animar, Soul of Elements
0.01% of 15877 decks 1 decks
Derevi, Empyrial Tactician
0.01% of 7409 decks 1 decks
Momir Vig, Simic Visionary
0.10% of 1008 decks 1 decks
Ludevic, Necro-Alchemist // Sidar Kondo of Jamuraa
0.25% of 396 decks 1 decks
New Cards
Abhorrent Oculus
92% of 13 decks +87% synergy
Unnerving Grasp
80% of 5 decks +79% synergy
They Came from the Pipes
70% of 23 decks +65% synergy
Threats Around Every Corner
64% of 11 decks +60% synergy
Dissection Tools
60% of 5 decks +59% synergy
High Synergy Cards
Kaust, Eyes of the Glade
100% of 4 decks +100% synergy
Den Protector
93% of 116 decks +92% synergy
Ainok Survivalist
92% of 116 decks +92% synergy
Obscuring Aether
91% of 116 decks +91% synergy
Willbender
91% of 202 decks +91% synergy
Kadena's Silencer
88% of 202 decks +87% synergy
Kheru Spellsnatcher
88% of 202 decks +87% synergy
Nantuko Vigilante
87% of 116 decks +86% synergy
Ugin's Mastery
87% of 140 decks +86% synergy
Pyrotechnic Performer
86% of 7 decks +85% synergy
Top Cards
Boltbender
86% of 7 decks +85% synergy
Vesuvan Shapeshifter
86% of 202 decks +85% synergy
Dream Chisel
85% of 202 decks +85% synergy
Stratus Dancer
84% of 202 decks +84% synergy
Grim Haruspex
84% of 82 decks +80% synergy
Yarus, Roar of the Old Gods
83% of 6 decks +83% synergy
Icefeather Aven
83% of 116 decks +82% synergy
Panoptic Projektor
82% of 98 decks +81% synergy
Chromeshell Crab
80% of 202 decks +79% synergy
Ixidron
79% of 202 decks +78% synergy
Creatures
Experiment Twelve
78% of 59 decks +77% synergy
Thousand Winds
77% of 202 decks +76% synergy
Hidden Dragonslayer
75% of 16 decks +75% synergy
Printlifter Ooze
75% of 59 decks +74% synergy
Bane of the Living
72% of 82 decks +71% synergy
Brine Elemental
72% of 202 decks +71% synergy
Voidmage Apprentice
70% of 202 decks +70% synergy
Mischievous Quanar
69% of 202 decks +69% synergy
Roshan, Hidden Magister
67% of 15 decks +65% synergy
Rattleclaw Mystic
67% of 6 decks +63% synergy
Yedora, Grave Gardener
66% of 113 decks +65% synergy
Silumgar Assassin
66% of 82 decks +65% synergy
Beast Whisperer
60% of 116 decks +48% synergy
Vannifar, Evolved Enigma
60% of 60 decks +59% synergy
Aphetto Runecaster
60% of 202 decks +60% synergy
Exit Specialist
59% of 99 decks +58% synergy
Aurelia's Vindicator
58% of 12 decks +58% synergy
Echo Tracer
57% of 202 decks +57% synergy
Deathmist Raptor
57% of 116 decks +56% synergy
Glitch Interpreter
57% of 23 decks +54% synergy
Frontline Strategist
56% of 16 decks +56% synergy
Jasmine Boreal of the Seven
56% of 16 decks +56% synergy
Kozilek, the Broken Reality
53% of 53 decks +52% synergy
Hooded Hydra
53% of 116 decks +51% synergy
Thieving Amalgam
51% of 82 decks +50% synergy
Weaver of Lies
50% of 202 decks +50% synergy
Unyielding Gatekeeper
50% of 12 decks +50% synergy
Curator Beastie
50% of 10 decks +46% synergy
Whisperwood Elemental
48% of 116 decks +48% synergy
Seedborn Muse
48% of 116 decks +40% synergy
Coveted Falcon
45% of 84 decks +45% synergy
Skinthinner
45% of 82 decks +45% synergy
Unblinking Bleb
45% of 202 decks +45% synergy
Daru Mender
44% of 16 decks +44% synergy
Master of Pearls
44% of 16 decks +44% synergy
Noble Hierarch
44% of 16 decks +28% synergy
Etrata, Deadly Fugitive
43% of 30 decks +42% synergy
Hauntwoods Shrieker
43% of 14 decks +40% synergy
Zimone, Mystery Unraveler
43% of 14 decks +40% synergy
Master of the Veil
43% of 202 decks +42% synergy
Mistfire Weaver
43% of 202 decks +42% synergy
Glaring Fleshraker
43% of 47 decks +40% synergy
Salt Road Ambushers
42% of 116 decks +42% synergy
Greenbelt Radical
41% of 59 decks +40% synergy
Skirk Alarmist
40% of 10 decks +40% synergy
Herald of Kozilek
40% of 10 decks +39% synergy
Nylea, Keen-Eyed
39% of 115 decks +38% synergy
Riptide Entrancer
39% of 202 decks +39% synergy
Aven Liberator
38% of 16 decks +37% synergy
Illithid Harvester
36% of 185 decks +35% synergy
Instants
Reality Shift
62% of 202 decks +53% synergy
Become Anonymous
59% of 41 decks +58% synergy
Swords to Plowshares
50% of 16 decks -13% synergy
Path to Exile
44% of 16 decks -2% synergy
Showstopping Surprise
43% of 7 decks +43% synergy
Unexplained Absence
42% of 12 decks +41% synergy
Chaos Warp
40% of 10 decks +8% synergy
Backslide
38% of 202 decks +38% synergy
Twist Reality
38% of 16 decks +36% synergy
Cyber Conversion
35% of 109 decks +33% synergy
Beast Within
33% of 116 decks -6% synergy
Counterspell
32% of 202 decks -11% synergy
Rapid Hybridization
25% of 202 decks +15% synergy
High Tide
20% of 202 decks +16% synergy
Pongify
19% of 202 decks +8% synergy
Growth Spiral
19% of 116 decks -3% synergy
Familiar's Ruse
19% of 202 decks +18% synergy
Cyclonic Rift
19% of 202 decks -9% synergy
Putrefy
18% of 71 decks +2% synergy
Brainstorm
18% of 202 decks -3% synergy
Evacuation
17% of 202 decks +15% synergy
Vampiric Tutor
17% of 82 decks -1% synergy
Sudden Substitution
15% of 202 decks +15% synergy
Arcane Denial
15% of 202 decks -4% synergy
An Offer You Can't Refuse
12% of 188 decks -9% synergy
Assassin's Trophy
11% of 71 decks -19% synergy
Paradoxical Outcome
10% of 202 decks +9% synergy
Sultai Charm
10% of 71 decks +5% synergy
Heroic Intervention
9% of 116 decks -20% synergy
Ixidor's Will
8% of 202 decks +8% synergy
Sink into Stupor
8% of 51 decks -6% synergy
Worldly Tutor
8% of 116 decks -6% synergy
Aetherspouts
7% of 202 decks +5% synergy
Negate
7% of 202 decks -16% synergy
Biomass Mutation
7% of 116 decks +5% synergy
Aetherize
6% of 202 decks +1% synergy
Swan Song
6% of 202 decks -10% synergy
Infernal Grasp
6% of 78 decks -1% synergy
Hagra Mauling
6% of 80 decks +4% synergy
Dark Ritual
6% of 82 decks -16% synergy
Saw It Coming
6% of 198 decks +4% synergy
Fact or Fiction
6% of 202 decks -1% synergy
Golgari Charm
6% of 71 decks -0% synergy
Mana Drain
5% of 202 decks -10% synergy
Return of the Wildspeaker
5% of 116 decks -8% synergy
Sorceries
Dusk // Dawn
56% of 16 decks +53% synergy
Ghastly Conscription
51% of 82 decks +51% synergy
Nature's Lore
45% of 116 decks +13% synergy
Farseek
41% of 116 decks +6% synergy
Rampant Growth
39% of 116 decks +4% synergy
Three Visits
38% of 116 decks +13% synergy
Cultivate
36% of 116 decks -10% synergy
Hide in Plain Sight
35% of 51 decks +35% synergy
Retribution of the Meek
31% of 16 decks +31% synergy
Write into Being
30% of 202 decks +30% synergy
All Is Dust
29% of 202 decks +27% synergy
Kodama's Reach
21% of 116 decks -11% synergy
Preordain
18% of 202 decks +7% synergy
Ravenform
18% of 198 decks +15% synergy
Shamanic Revelation
17% of 116 decks +8% synergy
Overwhelming Stampede
16% of 116 decks +10% synergy
Primal Growth
15% of 116 decks +14% synergy
Demonic Tutor
15% of 82 decks -8% synergy
Ponder
14% of 202 decks +1% synergy
Step Through
13% of 196 decks +12% synergy
Bala Ged Recovery
12% of 114 decks +3% synergy
Villainous Wealth
11% of 71 decks +3% synergy
Tempt with Discovery
9% of 116 decks +5% synergy
Tendrils of Agony
9% of 82 decks +8% synergy
Explore
8% of 116 decks -1% synergy
Profane Tutor
8% of 79 decks +5% synergy
Spectral Deluge
8% of 198 decks +6% synergy
Toxic Deluge
7% of 82 decks -10% synergy
Mythos of Brokkos
7% of 69 decks +5% synergy
Triumph of the Hordes
7% of 116 decks +3% synergy
Feed the Swarm
6% of 80 decks -12% synergy
Road of Return
6% of 116 decks +6% synergy
Fabricate
5% of 202 decks -1% synergy
Utility Artifacts
Scroll of Fate
75% of 202 decks +75% synergy
Cryptic Coat
44% of 99 decks +44% synergy
Crystal Shard
43% of 202 decks +42% synergy
Semblance Anvil
41% of 202 decks +40% synergy
Forsaken Monument
38% of 198 decks +36% synergy
Mystic Forge
29% of 202 decks +26% synergy
Heartstone
27% of 202 decks +26% synergy
Cloudstone Curio
27% of 202 decks +26% synergy
Cybership
19% of 109 decks +19% synergy
Helm of Awakening
19% of 202 decks +18% synergy
Vedalken Orrery
18% of 202 decks +16% synergy
Wayfarer's Bauble
17% of 202 decks +7% synergy
Lightning Greaves
14% of 202 decks -12% synergy
Swiftfoot Boots
12% of 202 decks -15% synergy
Ashnod's Altar
9% of 202 decks +2% synergy
Lifecrafter's Bestiary
9% of 116 decks +5% synergy
Bolas's Citadel
9% of 82 decks -1% synergy
The Great Henge
8% of 116 decks -2% synergy
Erratic Portal
7% of 202 decks +7% synergy
Bident of Thassa
7% of 202 decks +1% synergy
Strionic Resonator
7% of 202 decks +4% synergy
Sensei's Divining Top
7% of 202 decks +1% synergy
Symmetry Matrix
5% of 171 decks +5% synergy
Enchantments
Secret Plans
78% of 116 decks +78% synergy
True Identity
75% of 12 decks +75% synergy
Trail of Mystery
73% of 116 decks +73% synergy
Gift of Doom
68% of 82 decks +68% synergy
Mastery of the Unseen
62% of 16 decks +62% synergy
Veiled Ascension
58% of 12 decks +58% synergy
Wilderness Reclamation
44% of 116 decks +40% synergy
Equilibrium
41% of 202 decks +40% synergy
Guardian Project
41% of 116 decks +32% synergy
Training Grounds
32% of 202 decks +29% synergy
Heartless Summoning
32% of 82 decks +31% synergy
Experimental Lab // Staff Room
30% of 10 decks +27% synergy
Leyline of Anticipation
28% of 202 decks +24% synergy
Growing Rites of Itlimoc
27% of 116 decks +21% synergy
Cloudform
24% of 202 decks +24% synergy
Death in Heaven
23% of 35 decks +22% synergy
Muraganda Petroglyphs
22% of 116 decks +21% synergy
Beastmaster Ascension
16% of 116 decks +11% synergy
Cryptolith Rite
14% of 116 decks +10% synergy
Elven Chorus
13% of 84 decks +8% synergy
Rhystic Study
11% of 202 decks -16% synergy
Zendikar Resurgent
8% of 116 decks +5% synergy
Words of Wind
7% of 202 decks +7% synergy
Propaganda
7% of 202 decks -4% synergy
Mystic Remora
7% of 202 decks -11% synergy
Burgeoning
6% of 116 decks +2% synergy
Echoes of Eternity
6% of 53 decks +4% synergy
Imprisoned in the Moon
5% of 202 decks +2% synergy
Planeswalkers
Vivien, Champion of the Wilds
36% of 116 decks +34% synergy
Tezzeret, Cruel Machinist
5% of 202 decks +5% synergy
Utility Lands
Zoetic Cavern
80% of 202 decks +79% synergy
Branch of Vitu-Ghazi
75% of 100 decks +75% synergy
Alchemist's Refuge
53% of 116 decks +47% synergy
Reliquary Tower
52% of 202 decks +22% synergy
Tomb of the Spirit Dragon
48% of 202 decks +47% synergy
Bojuka Bog
35% of 82 decks +5% synergy
Riptide Laboratory
32% of 202 decks +30% synergy
Shrine of the Forsaken Gods
31% of 202 decks +30% synergy
Mystic Sanctuary
28% of 202 decks +15% synergy
Temple of the False God
21% of 202 decks +11% synergy
Restless Vinestalk
20% of 61 decks +17% synergy
Novijen, Heart of Progress
18% of 116 decks +17% synergy
Lumbering Falls
13% of 116 decks +11% synergy
Castle Vantress
13% of 202 decks +9% synergy
Otawara, Soaring City
13% of 190 decks -4% synergy
Lonely Sandbar
12% of 202 decks +9% synergy
Ruins of Oran-Rief
12% of 202 decks +12% synergy
Rogue's Passage
10% of 202 decks -9% synergy
Boseiju, Who Endures
10% of 107 decks -9% synergy
War Room
10% of 198 decks +4% synergy
Scavenger Grounds
9% of 202 decks +6% synergy
Homeward Path
9% of 202 decks +7% synergy
Ancient Tomb
9% of 202 decks -2% synergy
Terrain Generator
8% of 202 decks +7% synergy
Thespian's Stage
7% of 202 decks +5% synergy
Academy Ruins
7% of 202 decks +2% synergy
Yavimaya, Cradle of Growth
7% of 196 decks -3% synergy
Mosswort Bridge
5% of 116 decks -5% synergy
Mana Artifacts
Sol Ring
89% of 202 decks +5% synergy
Arcane Signet
66% of 202 decks -6% synergy
Thought Vessel
32% of 202 decks +15% synergy
Talisman of Curiosity
30% of 116 decks +18% synergy
Simic Signet
29% of 116 decks +15% synergy
Mind Stone
26% of 202 decks +9% synergy
Talisman of Dominance
26% of 82 decks -6% synergy
Dimir Signet
24% of 82 decks -5% synergy
Thran Dynamo
22% of 202 decks +17% synergy
Talisman of Resilience
21% of 71 decks +9% synergy
Golgari Signet
18% of 71 decks +6% synergy
Sky Diamond
11% of 202 decks +6% synergy
Midnight Clock
10% of 202 decks +5% synergy
Fellwar Stone
8% of 202 decks -13% synergy
Commander's Sphere
6% of 202 decks -9% synergy
Hedron Archive
5% of 202 decks +2% synergy
Lands
Temple Garden
62% of 16 decks +22% synergy
Yavimaya Coast
58% of 116 decks +31% synergy
Haunted Ridge
57% of 7 decks +41% synergy
Dragonskull Summit
57% of 7 decks +27% synergy
Crumbling Necropolis
57% of 7 decks +26% synergy
Spara's Headquarters
56% of 16 decks +24% synergy
Hallowed Fountain
56% of 16 decks +15% synergy
Command Tower
55% of 202 decks -18% synergy
Llanowar Wastes
54% of 71 decks +28% synergy
Opulent Palace
54% of 71 decks +27% synergy
Stormcarved Coast
50% of 10 decks +33% synergy
Sunpetal Grove
50% of 16 decks +27% synergy
Rootbound Crag
50% of 6 decks +26% synergy
Hinterland Harbor
50% of 116 decks +23% synergy
Canopy Vista
50% of 16 decks +14% synergy
Stomping Ground
50% of 6 decks +9% synergy
Sunken Hollow
49% of 82 decks +14% synergy
Simic Growth Chamber
46% of 116 decks +26% synergy
Rejuvenating Springs
46% of 114 decks +17% synergy
Overgrown Tomb
45% of 71 decks +2% synergy
Zagoth Triome
45% of 69 decks +14% synergy
Selesnya Sanctuary
44% of 16 decks +30% synergy
Glacial Fortress
44% of 16 decks +18% synergy
Breeding Pool
41% of 116 decks +0% synergy
Dreamroot Cascade
41% of 110 decks +22% synergy
Sulfur Falls
40% of 10 decks +10% synergy
Azorius Chancery
38% of 16 decks +23% synergy
Seaside Citadel
38% of 16 decks +11% synergy
Myriad Landscape
37% of 202 decks +17% synergy
Watery Grave
35% of 82 decks -6% synergy
Flooded Grove
33% of 116 decks +21% synergy
Bountiful Promenade
31% of 16 decks +7% synergy
Prairie Stream
31% of 16 decks -2% synergy
Darkwater Catacombs
30% of 82 decks +16% synergy
Undergrowth Stadium
28% of 69 decks +1% synergy
Exotic Orchard
27% of 202 decks -8% synergy
Drowned Catacomb
27% of 82 decks +1% synergy
Morphic Pool
27% of 82 decks +1% synergy
Dimir Aqueduct
26% of 82 decks +9% synergy
Woodland Cemetery
25% of 71 decks -2% synergy
Foreboding Landscape
25% of 12 decks +12% synergy
Sea of Clouds
25% of 16 decks -1% synergy
Underground River
24% of 82 decks +5% synergy
Waterlogged Grove
24% of 116 decks +17% synergy
Golgari Rot Farm
24% of 71 decks +6% synergy
Shipwreck Marsh
23% of 78 decks +4% synergy
Barkchannel Pathway
22% of 114 decks +13% synergy
Botanical Sanctum
19% of 116 decks +15% synergy
Scattered Groves
19% of 16 decks +11% synergy
Brushland
19% of 16 decks +3% synergy