Cloudstone Curio
Ugin, the Ineffable
Herald of Kozilek

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control a nontoken creature with morph or megamorph. You have a creature card with morph or megamorph in your hand.

   Steps

How does this combo work?
1
Cast the creature card with morph or megamorph from your hand for its morph cost by paying 0.
2
Whenever the face-down creature enters the battlefield, Cloudstone Curio triggers, returning another creature with morph or megamorph to your hand from the battlefield.
3
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite storm count
Ulalek, Fused Atrocity
0.4%inclusion88 decks24K decks
Animar, Soul of Elements
0.2%inclusion45 decks20.9K decks
Morophon, the Boundless
0.2%inclusion32 decks12.9K decks
Azlask, the Swelling Scourge
0.1%inclusion10 decks12.9K decks
Garth One-Eye
0.0%inclusion2 decks4.86K decks
Eshki, Temur's Roar
0.0%inclusion1 decks9.01K decks
Kenrith, the Returned King
0.0%inclusion1 decks27.7K decks
Intet, the Dreamer
0.1%inclusion1 decks1.01K decks
Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept
0.0%inclusion1 decks6.14K decks
Surrak Dragonclaw
0.0%inclusion1 decks2.06K decks
Yidris, Maelstrom Wielder
0.0%inclusion1 decks8.26K decks
High Synergy Cards
Eldrazi Temple
87%inclusion160 decks183 decks
86%synergy
All Is Dust
83%inclusion152 decks183 decks
81%synergy
Glaring Fleshraker
80%inclusion126 decks158 decks
78%synergy
Forsaken Monument
78%inclusion143 decks183 decks
76%synergy
Echoes of Eternity
75%inclusion118 decks158 decks
74%synergy
Conduit of Ruin
74%inclusion135 decks183 decks
73%synergy
Eye of Ugin
71%inclusion130 decks183 decks
70%synergy
Kozilek's Unsealing
70%inclusion112 decks160 decks
69%synergy
Shrine of the Forsaken Gods
68%inclusion125 decks183 decks
67%synergy
Ugin's Binding
67%inclusion105 decks156 decks
67%synergy
Top Cards
Urza's Incubator
69%inclusion126 decks183 decks
65%synergy
Ulamog, the Ceaseless Hunger
68%inclusion124 decks183 decks
66%synergy
Sire of Stagnation
67%inclusion90 decks135 decks
64%synergy
From Beyond
63%inclusion114 decks182 decks
62%synergy
Kozilek, Butcher of Truth
62%inclusion113 decks183 decks
60%synergy
Ulamog, the Defiler
61%inclusion97 decks158 decks
60%synergy
Oblivion Sower
61%inclusion112 decks183 decks
60%synergy
Kozilek, the Great Distortion
60%inclusion110 decks183 decks
59%synergy
Artisan of Kozilek
60%inclusion109 decks183 decks
58%synergy
Eldritch Immunity
58%inclusion91 decks156 decks
57%synergy
Game Changers
Ancient Tomb
31%inclusion57 decks183 decks
22%synergy
Rhystic Study
29%inclusion53 decks183 decks
5%synergy
Smothering Tithe
28%inclusion37 decks133 decks
6%synergy
Demonic Tutor
25%inclusion34 decks135 decks
5%synergy
Vampiric Tutor
19%inclusion26 decks135 decks
4%synergy
Mana Vault
19%inclusion35 decks183 decks
13%synergy
Fierce Guardianship
19%inclusion35 decks183 decks
1%synergy
Worldly Tutor
14%inclusion25 decks182 decks
1%synergy
The One Ring
13%inclusion23 decks183 decks
4%synergy
Grim Monolith
7.7%inclusion14 decks183 decks
6%synergy
Creatures
It That Heralds the End
55%inclusion98 decks177 decks
55%synergy
Spawnbed Protector
55%inclusion86 decks156 decks
54%synergy
Ulamog, the Infinite Gyre
55%inclusion100 decks183 decks
53%synergy
Eldrazi Displacer
54%inclusion72 decks133 decks
53%synergy
World Breaker
52%inclusion95 decks182 decks
51%synergy
Void Winnower
52%inclusion95 decks183 decks
51%synergy
Nulldrifter
52%inclusion83 decks161 decks
50%synergy
Sowing Mycospawn
50%inclusion79 decks157 decks
49%synergy
Zhulodok, Void Gorger
49%inclusion90 decks183 decks
49%synergy
Hideous Taskmaster
47%inclusion75 decks158 decks
46%synergy
It That Betrays
45%inclusion83 decks183 decks
44%synergy
Snapping Voidcraw
44%inclusion68 decks155 decks
42%synergy
Emrakul, the Promised End
42%inclusion76 decks183 decks
41%synergy
Kozilek, the Broken Reality
41%inclusion65 decks158 decks
40%synergy
Flayer of Loyalties
41%inclusion75 decks183 decks
40%synergy
Endbringer
40%inclusion74 decks183 decks
40%synergy
Catacomb Sifter
39%inclusion52 decks134 decks
38%synergy
Emrakul, the World Anew
37%inclusion66 decks177 decks
37%synergy
Skittering Cicada
36%inclusion66 decks183 decks
36%synergy
Roaming Throne
36%inclusion66 decks183 decks
29%synergy
Deepfathom Skulker
35%inclusion64 decks183 decks
34%synergy
Chittering Dispatcher
35%inclusion54 decks155 decks
34%synergy
Wastescape Battlemage
35%inclusion54 decks155 decks
34%synergy
Writhing Chrysalis
32%inclusion51 decks157 decks
31%synergy
Morophon, the Boundless
30%inclusion40 decks133 decks
16%synergy
Void Grafter
29%inclusion52 decks182 decks
28%synergy
Drowner of Hope
28%inclusion52 decks183 decks
28%synergy
Brood Monitor
28%inclusion51 decks182 decks
28%synergy
Liberator, Urza's Battlethopter
27%inclusion50 decks183 decks
26%synergy
Forerunner of Slaughter
27%inclusion36 decks135 decks
26%synergy
Sifter of Skulls
26%inclusion35 decks135 decks
25%synergy
Anticausal Vestige
26%inclusion8 decks31 decks
25%synergy
Flayer Drone
25%inclusion34 decks135 decks
25%synergy
Benthic Anomaly
25%inclusion39 decks156 decks
24%synergy
Spawn-Gang Commander
24%inclusion38 decks161 decks
23%synergy
Eyeless Watcher
23%inclusion42 decks182 decks
23%synergy
Thief of Existence
22%inclusion34 decks157 decks
21%synergy
Sire of Seven Deaths
21%inclusion23 decks112 decks
20%synergy
Birds of Paradise
20%inclusion37 decks182 decks
-7%synergy
Ulamog's Nullifier
20%inclusion27 decks135 decks
20%synergy
Ancestral Statue
20%inclusion36 decks183 decks
19%synergy
Azlask, the Swelling Scourge
20%inclusion23 decks117 decks
18%synergy
Smothering Abomination
19%inclusion26 decks135 decks
18%synergy
Jodah, Archmage Eternal
19%inclusion25 decks133 decks
16%synergy
Bismuth Mindrender
19%inclusion22 decks118 decks
18%synergy
Breaker of Creation
17%inclusion27 decks161 decks
16%synergy
Ulamog's Dreadsire
17%inclusion26 decks156 decks
16%synergy
Endless One
16%inclusion30 decks183 decks
16%synergy
Herigast, Erupting Nullkite
16%inclusion25 decks161 decks
15%synergy
Pathrazer of Ulamog
15%inclusion28 decks183 decks
15%synergy
Instants
Kozilek's Command
55%inclusion86 decks156 decks
54%synergy
Null Elemental Blast
39%inclusion63 decks161 decks
38%synergy
Eldrazi Confluence
31%inclusion48 decks156 decks
30%synergy
Titan's Presence
31%inclusion56 decks183 decks
30%synergy
Not of This World
24%inclusion44 decks183 decks
23%synergy
Warping Wail
22%inclusion41 decks183 decks
22%synergy
Kozilek's Return
21%inclusion39 decks183 decks
21%synergy
Mana Drain
20%inclusion36 decks183 decks
5%synergy
Return of the Wildspeaker
19%inclusion35 decks182 decks
8%synergy
Desecrate Reality
19%inclusion35 decks183 decks
19%synergy
Cyclonic Rift
18%inclusion33 decks183 decks
-5%synergy
Void Shatter
17%inclusion32 decks183 decks
17%synergy
Heroic Intervention
16%inclusion30 decks182 decks
-14%synergy
Counterspell
15%inclusion27 decks183 decks
-27%synergy
Swords to Plowshares
14%inclusion19 decks133 decks
-47%synergy
Abstruse Appropriation
14%inclusion16 decks117 decks
12%synergy
Spell Shrivel
14%inclusion25 decks183 decks
14%synergy
Enlightened Tutor
12%inclusion16 decks133 decks
-3%synergy
Crib Swap
11%inclusion15 decks133 decks
10%synergy
Deflecting Swat
11%inclusion20 decks183 decks
-6%synergy
Unfathomable Truths
8.9%inclusion14 decks157 decks
9%synergy
Despark
8.3%inclusion11 decks133 decks
-6%synergy
Crop Rotation
7.7%inclusion14 decks182 decks
-2%synergy
An Offer You Can't Refuse
6.0%inclusion11 decks183 decks
-18%synergy
Kindred Summons
5.5%inclusion10 decks182 decks
4%synergy
Beast Within
5.5%inclusion10 decks182 decks
-29%synergy
Eladamri's Call
5.3%inclusion7 decks133 decks
-4%synergy
Path to Exile
5.3%inclusion7 decks133 decks
-42%synergy
Assassin's Trophy
5.2%inclusion7 decks134 decks
-25%synergy
Sorceries
Rise of the Eldrazi
33%inclusion61 decks183 decks
33%synergy
Selective Obliteration
21%inclusion32 decks156 decks
20%synergy
Farseek
20%inclusion36 decks182 decks
-16%synergy
Sylvan Scrying
19%inclusion34 decks182 decks
16%synergy
Ancient Stirrings
18%inclusion33 decks182 decks
18%synergy
Calamity of the Titans
17%inclusion32 decks183 decks
17%synergy
Cultivate
16%inclusion30 decks182 decks
-27%synergy
Nature's Lore
16%inclusion29 decks182 decks
-16%synergy
Tempt with Discovery
14%inclusion26 decks182 decks
10%synergy
Three Visits
13%inclusion23 decks182 decks
-12%synergy
Kodama's Reach
13%inclusion23 decks182 decks
-15%synergy
Skittering Invasion
13%inclusion23 decks183 decks
12%synergy
Wargate
10%inclusion13 decks133 decks
7%synergy
Rishkar's Expertise
8.8%inclusion16 decks182 decks
-1%synergy
Rampant Growth
7.7%inclusion14 decks182 decks
-26%synergy
Painful Truths
7.4%inclusion10 decks135 decks
5%synergy
Last March of the Ents
6.6%inclusion12 decks182 decks
3%synergy
Bring to Light
6.0%inclusion11 decks182 decks
5%synergy
Toxic Deluge
5.2%inclusion7 decks135 decks
-13%synergy
Utility Artifacts
Mystic Forge
51%inclusion93 decks183 decks
48%synergy
Herald's Horn
40%inclusion73 decks183 decks
34%synergy
Fist of Suns
31%inclusion41 decks133 decks
25%synergy
Lightning Greaves
29%inclusion53 decks183 decks
4%synergy
Darksteel Monolith
26%inclusion48 decks183 decks
25%synergy
Sensei's Divining Top
19%inclusion34 decks183 decks
14%synergy
The Great Henge
18%inclusion33 decks182 decks
9%synergy
Eldrazi Monument
18%inclusion33 decks183 decks
17%synergy
Idol of False Gods
16%inclusion25 decks157 decks
16%synergy
Expedition Map
15%inclusion28 decks183 decks
12%synergy
Skullclamp
15%inclusion28 decks183 decks
4%synergy
Vanquisher's Banner
14%inclusion26 decks183 decks
11%synergy
Swiftfoot Boots
13%inclusion24 decks183 decks
-14%synergy
Strionic Resonator
11%inclusion20 decks183 decks
8%synergy
Ozolith, the Shattered Spire
8.2%inclusion15 decks182 decks
4%synergy
Ashnod's Altar
7.7%inclusion14 decks183 decks
1%synergy
Vedalken Orrery
7.1%inclusion13 decks183 decks
6%synergy
Lithoform Engine
6.6%inclusion12 decks183 decks
5%synergy
Rings of Brighthearth
6.6%inclusion12 decks183 decks
5%synergy
Mirage Mirror
6.6%inclusion12 decks183 decks
5%synergy
Chimil, the Inner Sun
6.6%inclusion12 decks183 decks
5%synergy
Mithril Coat
6.6%inclusion12 decks183 decks
2%synergy
Idol of Oblivion
6.6%inclusion12 decks183 decks
2%synergy
Voltaic Key
6.0%inclusion11 decks183 decks
5%synergy
Maskwood Nexus
5.5%inclusion10 decks183 decks
3%synergy
The Ozolith
5.5%inclusion10 decks183 decks
2%synergy
Enchantments
Path of Annihilation
48%inclusion76 decks157 decks
47%synergy
Awakening Zone
45%inclusion82 decks182 decks
43%synergy
Kindred Discovery
27%inclusion49 decks183 decks
20%synergy
Temur Ascendancy
25%inclusion45 decks182 decks
10%synergy
Rhythm of the Wild
25%inclusion45 decks182 decks
2%synergy
Garruk's Uprising
24%inclusion44 decks182 decks
7%synergy
Up the Beanstalk
24%inclusion43 decks182 decks
20%synergy
Spreading Plague
21%inclusion28 decks135 decks
21%synergy
Cryptolith Rite
16%inclusion29 decks182 decks
12%synergy
Eldrazi Conscription
16%inclusion29 decks183 decks
15%synergy
Leyline of Mutation
15%inclusion13 decks88 decks
11%synergy
Mana Maze
15%inclusion27 decks183 decks
15%synergy
Molten Nursery
13%inclusion23 decks183 decks
13%synergy
Reflections of Littjara
11%inclusion20 decks183 decks
7%synergy
Hardened Scales
9.3%inclusion17 decks182 decks
-1%synergy
Sylvan Library
8.8%inclusion16 decks182 decks
-1%synergy
Descendants' Path
8.2%inclusion15 decks182 decks
7%synergy
Monstrous Vortex
7.7%inclusion12 decks156 decks
6%synergy
Parallel Lives
7.7%inclusion14 decks182 decks
1%synergy
Mana Echoes
7.7%inclusion14 decks183 decks
7%synergy
Food Chain
7.1%inclusion13 decks182 decks
5%synergy
Doubling Season
6.6%inclusion12 decks182 decks
-3%synergy
Annie Joins Up
5.6%inclusion7 decks125 decks
-7%synergy
Mystic Remora
5.5%inclusion10 decks183 decks
-11%synergy
Anointed Procession
5.3%inclusion7 decks133 decks
-2%synergy
Planeswalkers
Ugin, Eye of the Storms
50%inclusion32 decks64 decks
49%synergy
Ugin, the Spirit Dragon
30%inclusion55 decks183 decks
29%synergy
Ashiok, Dream Render
8.1%inclusion11 decks135 decks
5%synergy
Utility Lands
Sanctum of Ugin
62%inclusion114 decks183 decks
62%synergy
Urza's Tower
48%inclusion87 decks183 decks
46%synergy
Ugin's Labyrinth
48%inclusion77 decks162 decks
47%synergy
Urza's Power Plant
47%inclusion86 decks183 decks
45%synergy
Reliquary Tower
47%inclusion86 decks183 decks
17%synergy
Urza's Mine
46%inclusion84 decks183 decks
44%synergy
Tomb of the Spirit Dragon
40%inclusion73 decks183 decks
39%synergy
Cascading Cataracts
32%inclusion59 decks183 decks
31%synergy
Temple of the False God
25%inclusion45 decks183 decks
15%synergy
Bonders' Enclave
21%inclusion39 decks183 decks
19%synergy
Yavimaya, Cradle of Growth
20%inclusion36 decks183 decks
11%synergy
Urza's Saga
19%inclusion35 decks183 decks
12%synergy
Urza's Workshop
16%inclusion30 decks183 decks
16%synergy
Three Tree City
16%inclusion22 decks137 decks
11%synergy
Rogue's Passage
16%inclusion29 decks183 decks
-5%synergy
Spawning Bed
13%inclusion24 decks183 decks
13%synergy
Emergence Zone
13%inclusion23 decks183 decks
10%synergy
Thespian's Stage
12%inclusion22 decks183 decks
10%synergy
Bojuka Bog
11%inclusion15 decks135 decks
-19%synergy
Boseiju, Who Endures
10%inclusion19 decks182 decks
-8%synergy
Vesuva
10%inclusion19 decks183 decks
9%synergy
Evendo, Waking Haven
10%inclusion3 decks30 decks
5%synergy
Guildless Commons
9.3%inclusion17 decks183 decks
8%synergy
Inventors' Fair
9.3%inclusion17 decks183 decks
6%synergy
Urborg, Tomb of Yawgmoth
9.3%inclusion17 decks183 decks
0%synergy
Otawara, Soaring City
7.7%inclusion14 decks183 decks
-9%synergy
Fountainport
7.4%inclusion10 decks135 decks
6%synergy
Ruins of Oran-Rief
7.1%inclusion13 decks183 decks
7%synergy
Trenchpost
6.4%inclusion10 decks156 decks
6%synergy
Alchemist's Refuge
6.0%inclusion11 decks182 decks
0%synergy
Tectonic Edge
6.0%inclusion11 decks183 decks
6%synergy
Command Beacon
6.0%inclusion11 decks183 decks
1%synergy
Mosswort Bridge
5.5%inclusion10 decks182 decks
-5%synergy
Glimmerpost
5.5%inclusion10 decks183 decks
5%synergy
Cloudpost
5.5%inclusion10 decks183 decks
5%synergy
Homeward Path
5.5%inclusion10 decks183 decks
4%synergy
Mana Artifacts
Sol Ring
98%inclusion180 decks183 decks
15%synergy
Arcane Signet
72%inclusion132 decks183 decks
0%synergy
Chromatic Lantern
45%inclusion83 decks183 decks
37%synergy
Thran Dynamo
43%inclusion78 decks183 decks
38%synergy
Basalt Monolith
38%inclusion69 decks183 decks
35%synergy
Talisman of Curiosity
37%inclusion68 decks182 decks
25%synergy
Talisman of Impulse
31%inclusion56 decks182 decks
20%synergy
Talisman of Resilience
22%inclusion30 decks134 decks
10%synergy
Talisman of Dominance
19%inclusion25 decks135 decks
-14%synergy
Everflowing Chalice
17%inclusion32 decks183 decks
13%synergy
Fellwar Stone
17%inclusion32 decks183 decks
-3%synergy
Talisman of Creativity
17%inclusion32 decks183 decks
-11%synergy
Chromatic Orrery
16%inclusion30 decks183 decks
15%synergy
Thought Vessel
15%inclusion28 decks183 decks
-2%synergy
Hedron Archive
11%inclusion21 decks183 decks
9%synergy
Mana Crypt
10%inclusion18 decks183 decks
7%synergy
Talisman of Unity
10%inclusion13 decks133 decks
2%synergy
Timeless Lotus
7.5%inclusion10 decks133 decks
-3%synergy
Dreamstone Hedron
7.1%inclusion13 decks183 decks
6%synergy
Worn Powerstone
7.1%inclusion13 decks183 decks
5%synergy
Talisman of Hierarchy
6.0%inclusion8 decks133 decks
-20%synergy
Talisman of Indulgence
5.9%inclusion8 decks135 decks
-22%synergy
Commander's Sphere
5.5%inclusion10 decks183 decks
-7%synergy
Talisman of Conviction
5.3%inclusion7 decks133 decks
-19%synergy
Lands
Command Tower
91%inclusion167 decks183 decks
17%synergy
Yavimaya Coast
59%inclusion107 decks182 decks
32%synergy
Karplusan Forest
53%inclusion97 decks182 decks
34%synergy
Llanowar Wastes
52%inclusion70 decks134 decks
26%synergy
Shivan Reef
52%inclusion95 decks183 decks
23%synergy
Underground River
50%inclusion67 decks135 decks
27%synergy
Exotic Orchard
47%inclusion86 decks183 decks
11%synergy
Brushland
46%inclusion61 decks133 decks
27%synergy
Corrupted Crossroads
45%inclusion82 decks183 decks
45%synergy
Adarkar Wastes
44%inclusion59 decks133 decks
21%synergy
Unclaimed Territory
42%inclusion77 decks183 decks
38%synergy
Cavern of Souls
42%inclusion77 decks183 decks
35%synergy
Secluded Courtyard
41%inclusion75 decks183 decks
37%synergy
Sulfurous Springs
41%inclusion55 decks135 decks
17%synergy
Battlefield Forge
38%inclusion51 decks133 decks
10%synergy
Path of Ancestry
38%inclusion69 decks183 decks
16%synergy
The World Tree
35%inclusion46 decks133 decks
6%synergy
Caves of Koilos
35%inclusion46 decks133 decks
5%synergy
Ketria Triome
29%inclusion53 decks182 decks
-2%synergy
Breeding Pool
28%inclusion51 decks182 decks
-13%synergy
Misty Rainforest
27%inclusion49 decks183 decks
15%synergy
Urza's Cave
27%inclusion43 decks161 decks
24%synergy
Wooded Foothills
26%inclusion48 decks183 decks
15%synergy
Stomping Ground
25%inclusion46 decks182 decks
-16%synergy
Reflecting Pool
22%inclusion41 decks183 decks
17%synergy
Mana Confluence
22%inclusion41 decks183 decks
15%synergy
Steam Vents
22%inclusion40 decks183 decks
-16%synergy
Scalding Tarn
21%inclusion39 decks183 decks
10%synergy
City of Brass
20%inclusion37 decks183 decks
13%synergy
Opal Palace
19%inclusion34 decks183 decks
16%synergy
Twisted Landscape
15%inclusion18 decks117 decks
5%synergy
Spire Garden
15%inclusion28 decks182 decks
-7%synergy
Planar Nexus
14%inclusion23 decks161 decks
14%synergy
Frontier Bivouac
14%inclusion26 decks182 decks
-14%synergy
Bountiful Landscape
14%inclusion22 decks155 decks
4%synergy
Tranquil Landscape
14%inclusion16 decks116 decks
5%synergy
Tropical Island
14%inclusion25 decks182 decks
-1%synergy
Windswept Heath
14%inclusion25 decks183 decks
3%synergy
Taiga
13%inclusion24 decks182 decks
0%synergy
Rejuvenating Springs
13%inclusion24 decks182 decks
-14%synergy
Zagoth Triome
13%inclusion17 decks134 decks
-15%synergy
Bloodstained Mire
12%inclusion22 decks183 decks
1%synergy
Bayou
12%inclusion16 decks134 decks
-1%synergy
Flooded Strand
11%inclusion21 decks183 decks
0%synergy
Polluted Delta
11%inclusion21 decks183 decks
0%synergy
Volcanic Island
11%inclusion21 decks183 decks
-2%synergy
Training Center
11%inclusion21 decks183 decks
-14%synergy
Opulent Palace
11%inclusion15 decks134 decks
-17%synergy
Savage Lands
10%inclusion14 decks134 decks
-11%synergy
Overgrown Tomb
10%inclusion14 decks134 decks
-30%synergy