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
27.53% of 247 decks 68 decks
Kadena, Slinking Sorcerer
1.14% of 5446 decks 62 decks
Volo, Guide to Monsters
0.26% of 7263 decks 19 decks
Top Cards
Ainok Survivalist
94% of 106 decks +94% synergy
Den Protector
94% of 106 decks +94% synergy
Obscuring Aether
93% of 106 decks +93% synergy
Ugin's Mastery
93% of 114 decks +92% synergy
Hidden Dragonslayer
92% of 13 decks +92% synergy
Willbender
92% of 186 decks +92% synergy
Kadena's Silencer
90% of 186 decks +90% synergy
True Identity
89% of 9 decks +89% synergy
Icefeather Aven
89% of 106 decks +89% synergy
Nantuko Vigilante
89% of 106 decks +88% synergy
Creatures
Kaust, Eyes of the Glade
100% of 3 decks +100% synergy
Vesuvan Shapeshifter
88% of 186 decks +88% synergy
Grim Haruspex
88% of 75 decks +86% synergy
Kheru Spellsnatcher
88% of 186 decks +87% synergy
Stratus Dancer
87% of 186 decks +87% synergy
Roshan, Hidden Magister
83% of 6 decks +82% synergy
Chromeshell Crab
83% of 186 decks +83% synergy
Experiment Twelve
81% of 43 decks +81% synergy
Printlifter Ooze
81% of 43 decks +81% synergy
Ixidron
81% of 186 decks +80% synergy
Pyrotechnic Performer
80% of 5 decks +80% synergy
Boltbender
80% of 5 decks +80% synergy
Rattleclaw Mystic
80% of 5 decks +80% synergy
Thousand Winds
76% of 186 decks +76% synergy
Yarus, Roar of the Old Gods
75% of 4 decks +75% synergy
Brine Elemental
75% of 186 decks +75% synergy
Bane of the Living
75% of 75 decks +74% synergy
Voidmage Apprentice
72% of 186 decks +72% synergy
Mischievous Quanar
72% of 186 decks +71% synergy
Jasmine Boreal of the Seven
69% of 13 decks +69% synergy
Yedora, Grave Gardener
68% of 103 decks +68% synergy
Silumgar Assassin
67% of 75 decks +66% synergy
Vannifar, Evolved Enigma
64% of 44 decks +63% synergy
Aphetto Runecaster
62% of 186 decks +62% synergy
Deathmist Raptor
61% of 106 decks +61% synergy
Beast Whisperer
61% of 106 decks +55% synergy
Exit Specialist
61% of 72 decks +61% synergy
Echo Tracer
60% of 186 decks +60% synergy
Hooded Hydra
57% of 106 decks +56% synergy
Unyielding Gatekeeper
56% of 9 decks +55% synergy
Aurelia's Vindicator
56% of 9 decks +55% synergy
Weaver of Lies
54% of 186 decks +54% synergy
Frontline Strategist
54% of 13 decks +54% synergy
Kozilek, the Broken Reality
54% of 26 decks +52% synergy
Coveted Falcon
54% of 56 decks +53% synergy
Seedborn Muse
52% of 106 decks +48% synergy
Thieving Amalgam
51% of 75 decks +50% synergy
Whisperwood Elemental
50% of 106 decks +50% synergy
Unblinking Bleb
47% of 186 decks +47% 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
Skinthinner
45% of 75 decks +45% synergy
Master of the Veil
45% of 186 decks +45% synergy
Skirk Alarmist
44% of 9 decks +44% synergy
Greenbelt Radical
44% of 43 decks +44% synergy
Salt Road Ambushers
43% of 106 decks +43% synergy
Mistfire Weaver
42% of 186 decks +42% synergy
Glaring Fleshraker
41% of 22 decks +38% synergy
Instants
Become Anonymous
81% of 16 decks +81% synergy
Reality Shift
62% of 186 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
37% of 186 decks +37% synergy
Cyber Conversion
35% of 82 decks +35% synergy
Chaos Warp
33% of 9 decks +18% synergy
Beast Within
33% of 106 decks +15% synergy
Counterspell
32% of 186 decks +11% synergy
Rapid Hybridization
26% of 186 decks +21% synergy
High Tide
21% of 186 decks +19% synergy
Familiar's Ruse
20% of 186 decks +20% synergy
Pongify
20% of 186 decks +15% synergy
Putrefy
20% of 64 decks +17% synergy
Brainstorm
19% of 186 decks +9% synergy
Cyclonic Rift
19% of 186 decks +5% synergy
Growth Spiral
19% of 106 decks +14% synergy
Evacuation
18% of 186 decks +17% synergy
Sudden Substitution
16% of 186 decks +16% synergy
Arcane Denial
16% of 186 decks +7% synergy
Vampiric Tutor
15% of 75 decks +5% synergy
An Offer You Can't Refuse
13% of 167 decks +3% synergy
Sultai Charm
11% of 64 decks +10% synergy
Assassin's Trophy
11% of 64 decks +5% synergy
Paradoxical Outcome
9% of 186 decks +9% synergy
Ixidor's Will
9% of 186 decks +9% synergy
Aetherspouts
8% of 186 decks +7% synergy
Dark Ritual
8% of 75 decks -3% synergy
Biomass Mutation
8% of 106 decks +7% synergy
Heroic Intervention
8% of 106 decks -6% synergy
Infernal Grasp
7% of 71 decks +3% synergy
Malakir Rebirth
7% of 73 decks +2% synergy
Worldly Tutor
7% of 106 decks -0% synergy
Aetherize
6% of 186 decks +4% synergy
Negate
6% of 186 decks -5% synergy
Swan Song
6% of 186 decks -2% synergy
Return of the Wildspeaker
6% of 106 decks -1% synergy
Saw It Coming
5% of 182 decks +5% synergy
Hagra Mauling
5% of 73 decks +4% synergy
Fact or Fiction
5% of 186 decks +2% synergy
Sorceries
Dusk // Dawn
69% of 13 decks +68% synergy
Ghastly Conscription
51% of 75 decks +51% synergy
Nature's Lore
46% of 106 decks +31% synergy
Farseek
42% of 106 decks +26% synergy
Rampant Growth
42% of 106 decks +25% synergy
Three Visits
37% of 106 decks +25% synergy
Cultivate
37% of 106 decks +15% synergy
Hide in Plain Sight
34% of 35 decks +34% synergy
Write into Being
32% of 186 decks +32% synergy
Retribution of the Meek
31% of 13 decks +31% synergy
All Is Dust
28% of 186 decks +26% synergy
Kodama's Reach
20% of 106 decks +5% synergy
Preordain
18% of 186 decks +13% synergy
Ravenform
18% of 182 decks +16% synergy
Shamanic Revelation
17% of 106 decks +12% synergy
Ponder
16% of 186 decks +9% synergy
Overwhelming Stampede
15% of 106 decks +12% synergy
Primal Growth
14% of 106 decks +14% synergy
Demonic Tutor
13% of 75 decks +2% synergy
Step Through
13% of 178 decks +12% synergy
Villainous Wealth
12% of 64 decks +12% synergy
Tendrils of Agony
11% of 75 decks +10% synergy
Bala Ged Recovery
11% of 104 decks +6% synergy
Tempt with Discovery
8% of 106 decks +7% synergy
Explore
8% of 106 decks +4% synergy
Mythos of Brokkos
8% of 62 decks +8% synergy
Triumph of the Hordes
8% of 106 decks +6% synergy
Spectral Deluge
7% of 182 decks +7% synergy
Profane Tutor
7% of 72 decks +5% synergy
Feed the Swarm
7% of 73 decks -3% synergy
Diabolic Tutor
7% of 75 decks +3% synergy
Road of Return
7% of 106 decks +6% synergy
Grim Tutor
5% of 75 decks +3% synergy
Dig Up
5% of 59 decks +4% synergy
Utility Artifacts
Dream Chisel
87% of 186 decks +87% synergy
Panoptic Projektor
85% of 71 decks +84% synergy
Scroll of Fate
76% of 186 decks +76% synergy
Cryptic Coat
46% of 72 decks +46% synergy
Crystal Shard
43% of 186 decks +42% synergy
Semblance Anvil
41% of 186 decks +41% synergy
Forsaken Monument
38% of 182 decks +36% synergy
Mystic Forge
31% of 186 decks +28% synergy
Cloudstone Curio
27% of 186 decks +26% synergy
Heartstone
26% of 186 decks +25% synergy
Helm of Awakening
20% of 186 decks +20% synergy
Vedalken Orrery
20% of 186 decks +19% synergy
Cybership
20% of 82 decks +19% synergy
Wayfarer's Bauble
16% of 186 decks +5% synergy
Lightning Greaves
16% of 186 decks -9% synergy
Swiftfoot Boots
12% of 186 decks -16% synergy
Bident of Thassa
10% of 186 decks +7% synergy
Ashnod's Altar
10% of 186 decks +2% synergy
Lifecrafter's Bestiary
9% of 106 decks +7% synergy
The Great Henge
9% of 106 decks +5% synergy
Strionic Resonator
8% of 186 decks +5% synergy
Bolas's Citadel
8% of 75 decks +3% synergy
Erratic Portal
8% of 186 decks +7% synergy
Symmetry Matrix
7% of 126 decks +7% synergy
Sensei's Divining Top
6% of 186 decks +0% synergy
Enchantments
Secret Plans
76% of 106 decks +76% synergy
Trail of Mystery
76% of 106 decks +76% synergy
Gift of Doom
72% of 75 decks +72% synergy
Mastery of the Unseen
62% of 13 decks +61% synergy
Veiled Ascension
56% of 9 decks +55% synergy
Wilderness Reclamation
46% of 106 decks +44% synergy
Guardian Project
43% of 106 decks +39% synergy
Equilibrium
42% of 186 decks +42% synergy
Training Grounds
32% of 186 decks +31% synergy
Heartless Summoning
32% of 75 decks +31% synergy
Leyline of Anticipation
32% of 186 decks +29% synergy
Growing Rites of Itlimoc
27% of 106 decks +25% synergy
Cloudform
25% of 186 decks +25% synergy
Death in Heaven
22% of 23 decks +21% synergy
Muraganda Petroglyphs
21% of 106 decks +21% synergy
Beastmaster Ascension
17% of 106 decks +14% synergy
Elven Chorus
16% of 68 decks +14% synergy
Cryptolith Rite
14% of 106 decks +12% synergy
Rhystic Study
13% of 186 decks -1% synergy
Zendikar Resurgent
9% of 106 decks +8% synergy
Words of Wind
9% of 186 decks +9% synergy
Propaganda
8% of 186 decks +2% synergy
Mystic Remora
8% of 186 decks -1% synergy
Burgeoning
7% of 106 decks +5% synergy
Imprisoned in the Moon
6% of 186 decks +5% synergy
Planeswalkers
Vivien, Champion of the Wilds
42% of 106 decks +41% synergy
Tezzeret, Cruel Machinist
5% of 186 decks +5% synergy
Ugin, the Spirit Dragon
5% of 186 decks +4% synergy
Utility Lands
Zoetic Cavern
80% of 186 decks +79% synergy
Branch of Vitu-Ghazi
75% of 73 decks +75% synergy
Alchemist's Refuge
55% of 106 decks +53% synergy
Reliquary Tower
53% of 186 decks +24% synergy
Tomb of the Spirit Dragon
48% of 186 decks +47% synergy
Bojuka Bog
39% of 75 decks +23% synergy
Riptide Laboratory
32% of 186 decks +31% synergy
Shrine of the Forsaken Gods
30% of 186 decks +29% synergy
Restless Vinestalk
27% of 45 decks +26% synergy
Mystic Sanctuary
26% of 186 decks +20% synergy
Temple of the False God
19% of 186 decks +9% synergy
Novijen, Heart of Progress
17% of 106 decks +17% synergy
Castle Vantress
13% of 186 decks +11% synergy
Lonely Sandbar
12% of 186 decks +11% synergy
Lumbering Falls
12% of 106 decks +12% synergy
Ruins of Oran-Rief
11% of 186 decks +11% synergy
Otawara, Soaring City
11% of 171 decks +3% synergy
Boseiju, Who Endures
11% of 95 decks +1% synergy
War Room
10% of 182 decks +3% synergy
Scavenger Grounds
10% of 186 decks +6% synergy
Rogue's Passage
10% of 186 decks -9% synergy
Terrain Generator
8% of 186 decks +7% synergy
Homeward Path
8% of 186 decks +6% synergy
Ancient Tomb
8% of 186 decks -3% synergy
Academy Ruins
7% of 186 decks +5% synergy
Thespian's Stage
7% of 186 decks +4% synergy
Yavimaya, Cradle of Growth
6% of 178 decks -3% synergy
Halimar Depths
6% of 186 decks +4% synergy
Mosswort Bridge
6% of 106 decks +1% synergy
Mana Artifacts
Sol Ring
89% of 186 decks +5% synergy
Arcane Signet
65% of 186 decks -7% synergy
Thought Vessel
32% of 186 decks +16% synergy
Talisman of Curiosity
28% of 106 decks +26% synergy
Simic Signet
27% of 106 decks +24% synergy
Mind Stone
26% of 186 decks +8% synergy
Talisman of Dominance
25% of 75 decks +18% synergy
Dimir Signet
24% of 75 decks +16% synergy
Thran Dynamo
23% of 186 decks +18% synergy
Talisman of Resilience
19% of 64 decks +16% synergy
Golgari Signet
19% of 64 decks +16% synergy
Sky Diamond
11% of 186 decks +9% synergy
Midnight Clock
9% of 186 decks +7% synergy
Fellwar Stone
8% of 186 decks -13% synergy
Hedron Archive
6% of 186 decks +3% synergy
Commander's Sphere
6% of 186 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 106 decks +56% 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
Llanowar Wastes
59% of 64 decks +54% synergy
Opulent Palace
58% of 64 decks +55% synergy
Command Tower
56% of 186 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
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
Sunken Hollow
49% of 75 decks +41% synergy
Zagoth Triome
47% of 62 decks +43% 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
Hinterland Harbor
45% of 106 decks +40% synergy
Sulfur Falls
44% of 9 decks +38% synergy
Simic Growth Chamber
44% of 106 decks +40% synergy
Rejuvenating Springs
43% of 104 decks +37% synergy
Overgrown Tomb
41% of 64 decks +31% synergy
Dreamroot Cascade
39% of 98 decks +35% synergy
Breeding Pool
39% of 106 decks +30% synergy
Azorius Chancery
38% of 13 decks +35% synergy
Bountiful Promenade
38% of 13 decks +33% synergy
Myriad Landscape
36% of 186 decks +16% synergy
Watery Grave
32% of 75 decks +22% synergy
Flooded Grove
31% of 106 decks +29% synergy
Sea of Clouds
31% of 13 decks +25% synergy
Prairie Stream
31% of 13 decks +23% synergy
Darkwater Catacombs
31% of 75 decks +27% synergy
Exotic Orchard
28% of 186 decks -7% synergy
Underground River
27% of 75 decks +22% synergy
Dimir Aqueduct
25% of 75 decks +21% synergy
Undergrowth Stadium
24% of 62 decks +19% synergy
Drowned Catacomb
24% of 75 decks +18% synergy
Golgari Rot Farm
23% of 64 decks +20% synergy
Barkchannel Pathway
23% of 104 decks +21% synergy
Brushland
23% of 13 decks +20% synergy
Adarkar Wastes
23% of 13 decks +20% synergy
Morphic Pool
23% of 75 decks +16% synergy