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%inclusion102 decks27.9K decks
Animar, Soul of Elements
0.2%inclusion42 decks21.9K decks
Morophon, the Boundless
0.2%inclusion23 decks14.3K decks
Azlask, the Swelling Scourge
0.1%inclusion15 decks14.6K decks
Kenrith, the Returned King
0.0%inclusion2 decks29.3K decks
Eshki, Temur's Roar
0.0%inclusion1 decks11.6K decks
Intet, the Dreamer
0.1%inclusion1 decks1.06K decks
Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept
0.0%inclusion1 decks7.55K decks
Surrak Dragonclaw
0.0%inclusion1 decks2.09K decks
Yidris, Maelstrom Wielder
0.0%inclusion1 decks9.06K decks
High Synergy Cards
Eldrazi Temple
89%inclusion169 decks189 decks
88%synergy
Forsaken Monument
83%inclusion157 decks189 decks
81%synergy
Glaring Fleshraker
82%inclusion149 decks182 decks
81%synergy
All Is Dust
82%inclusion155 decks189 decks
80%synergy
Echoes of Eternity
77%inclusion140 decks182 decks
76%synergy
Conduit of Ruin
70%inclusion132 decks189 decks
69%synergy
Eye of Ugin
69%inclusion131 decks189 decks
69%synergy
Kozilek's Unsealing
69%inclusion127 decks184 decks
68%synergy
Shrine of the Forsaken Gods
68%inclusion128 decks189 decks
66%synergy
Ulamog, the Ceaseless Hunger
66%inclusion125 decks189 decks
65%synergy
Top Cards
Urza's Incubator
68%inclusion128 decks189 decks
64%synergy
Ugin's Binding
65%inclusion117 decks180 decks
64%synergy
Ulamog, the Defiler
64%inclusion116 decks182 decks
63%synergy
Sire of Stagnation
63%inclusion91 decks144 decks
61%synergy
Oblivion Sower
60%inclusion113 decks189 decks
59%synergy
It That Heralds the End
59%inclusion112 decks189 decks
59%synergy
From Beyond
59%inclusion110 decks188 decks
58%synergy
Kozilek, Butcher of Truth
58%inclusion109 decks189 decks
56%synergy
Artisan of Kozilek
57%inclusion108 decks189 decks
56%synergy
Spawnbed Protector
57%inclusion102 decks180 decks
56%synergy
Game Changers
Ancient Tomb
31%inclusion59 decks189 decks
22%synergy
Rhystic Study
29%inclusion55 decks189 decks
6%synergy
Demonic Tutor
24%inclusion34 decks144 decks
5%synergy
Smothering Tithe
23%inclusion32 decks142 decks
2%synergy
Mana Vault
21%inclusion40 decks189 decks
15%synergy
Fierce Guardianship
21%inclusion39 decks189 decks
3%synergy
Vampiric Tutor
18%inclusion26 decks144 decks
4%synergy
Worldly Tutor
13%inclusion25 decks188 decks
1%synergy
The One Ring
13%inclusion25 decks189 decks
5%synergy
Grim Monolith
8.5%inclusion16 decks189 decks
6%synergy
Creatures
Kozilek, the Great Distortion
56%inclusion105 decks189 decks
55%synergy
Sowing Mycospawn
51%inclusion93 decks181 decks
50%synergy
Ulamog, the Infinite Gyre
51%inclusion96 decks189 decks
50%synergy
Nulldrifter
50%inclusion92 decks185 decks
48%synergy
World Breaker
49%inclusion93 decks188 decks
49%synergy
Eldrazi Displacer
49%inclusion70 decks142 decks
48%synergy
Zhulodok, Void Gorger
48%inclusion91 decks189 decks
48%synergy
Hideous Taskmaster
48%inclusion87 decks182 decks
47%synergy
It That Betrays
46%inclusion86 decks189 decks
44%synergy
Void Winnower
44%inclusion84 decks189 decks
43%synergy
Snapping Voidcraw
44%inclusion79 decks179 decks
42%synergy
Kozilek, the Broken Reality
42%inclusion76 decks182 decks
41%synergy
Flayer of Loyalties
40%inclusion76 decks189 decks
40%synergy
Endbringer
40%inclusion76 decks189 decks
39%synergy
Emrakul, the Promised End
40%inclusion76 decks189 decks
39%synergy
Skittering Cicada
39%inclusion74 decks189 decks
39%synergy
Emrakul, the World Anew
39%inclusion74 decks189 decks
38%synergy
Chittering Dispatcher
36%inclusion65 decks179 decks
35%synergy
Roaming Throne
36%inclusion68 decks189 decks
30%synergy
Wastescape Battlemage
35%inclusion63 decks179 decks
34%synergy
Writhing Chrysalis
34%inclusion62 decks181 decks
33%synergy
Deepfathom Skulker
32%inclusion61 decks189 decks
32%synergy
Catacomb Sifter
32%inclusion46 decks143 decks
31%synergy
Morophon, the Boundless
30%inclusion42 decks142 decks
16%synergy
Liberator, Urza's Battlethopter
29%inclusion54 decks189 decks
27%synergy
Drowner of Hope
27%inclusion51 decks189 decks
27%synergy
Benthic Anomaly
26%inclusion47 decks180 decks
25%synergy
Brood Monitor
25%inclusion47 decks188 decks
25%synergy
Void Grafter
24%inclusion46 decks188 decks
24%synergy
Spawn-Gang Commander
23%inclusion43 decks185 decks
23%synergy
Sire of Seven Deaths
22%inclusion30 decks137 decks
21%synergy
Thief of Existence
22%inclusion39 decks181 decks
21%synergy
Flayer Drone
21%inclusion30 decks144 decks
21%synergy
Azlask, the Swelling Scourge
20%inclusion28 decks137 decks
19%synergy
Sifter of Skulls
20%inclusion29 decks144 decks
19%synergy
Birds of Paradise
20%inclusion37 decks188 decks
-8%synergy
Forerunner of Slaughter
19%inclusion28 decks144 decks
19%synergy
Eyeless Watcher
19%inclusion35 decks188 decks
18%synergy
Ulamog's Dreadsire
18%inclusion33 decks180 decks
18%synergy
Anticausal Vestige
18%inclusion11 decks60 decks
17%synergy
Ancestral Statue
18%inclusion34 decks189 decks
18%synergy
Bismuth Mindrender
17%inclusion24 decks138 decks
17%synergy
Breaker of Creation
17%inclusion32 decks185 decks
17%synergy
Endless One
17%inclusion32 decks189 decks
17%synergy
Herigast, Erupting Nullkite
16%inclusion30 decks185 decks
16%synergy
Drowner of Truth
15%inclusion27 decks181 decks
14%synergy
Ultima, Origin of Oblivion
15%inclusion11 decks74 decks
14%synergy
Titans' Vanguard
15%inclusion26 decks179 decks
14%synergy
Dimensional Infiltrator
14%inclusion27 decks189 decks
14%synergy
Ulalek, Fused Atrocity
14%inclusion19 decks137 decks
13%synergy
Instants
Eldritch Immunity
57%inclusion102 decks180 decks
56%synergy
Kozilek's Command
53%inclusion96 decks180 decks
53%synergy
Null Elemental Blast
39%inclusion73 decks185 decks
38%synergy
Eldrazi Confluence
32%inclusion57 decks180 decks
31%synergy
Titan's Presence
25%inclusion47 decks189 decks
24%synergy
Warping Wail
23%inclusion43 decks189 decks
22%synergy
Kozilek's Return
22%inclusion41 decks189 decks
21%synergy
Not of This World
20%inclusion37 decks189 decks
19%synergy
Mana Drain
20%inclusion37 decks189 decks
5%synergy
Return of the Wildspeaker
19%inclusion36 decks188 decks
8%synergy
Cyclonic Rift
19%inclusion35 decks189 decks
-3%synergy
Desecrate Reality
18%inclusion34 decks189 decks
18%synergy
Heroic Intervention
15%inclusion28 decks188 decks
-16%synergy
Counterspell
15%inclusion28 decks189 decks
-27%synergy
Abstruse Appropriation
14%inclusion19 decks137 decks
12%synergy
Enlightened Tutor
13%inclusion18 decks142 decks
-2%synergy
Swords to Plowshares
13%inclusion18 decks142 decks
-48%synergy
Void Shatter
12%inclusion22 decks189 decks
11%synergy
Deflecting Swat
12%inclusion22 decks189 decks
-5%synergy
Crib Swap
11%inclusion15 decks142 decks
9%synergy
Spell Shrivel
9.0%inclusion17 decks189 decks
9%synergy
Unfathomable Truths
8.8%inclusion16 decks181 decks
9%synergy
Crop Rotation
8.0%inclusion15 decks188 decks
-2%synergy
Teferi's Protection
7.0%inclusion10 decks142 decks
-9%synergy
An Offer You Can't Refuse
6.3%inclusion12 decks189 decks
-19%synergy
Assassin's Trophy
6.3%inclusion9 decks143 decks
-25%synergy
Path to Exile
5.6%inclusion8 decks142 decks
-42%synergy
Ego Erasure
5.3%inclusion10 decks189 decks
5%synergy
Sorceries
Rise of the Eldrazi
33%inclusion62 decks189 decks
32%synergy
Sylvan Scrying
23%inclusion44 decks188 decks
21%synergy
Farseek
19%inclusion35 decks188 decks
-17%synergy
Ancient Stirrings
18%inclusion34 decks188 decks
18%synergy
Selective Obliteration
18%inclusion32 decks180 decks
17%synergy
Cultivate
16%inclusion31 decks188 decks
-26%synergy
Tempt with Discovery
15%inclusion29 decks188 decks
12%synergy
Nature's Lore
14%inclusion27 decks188 decks
-17%synergy
Calamity of the Titans
14%inclusion26 decks189 decks
13%synergy
Three Visits
13%inclusion24 decks188 decks
-11%synergy
Kodama's Reach
13%inclusion24 decks188 decks
-14%synergy
Skittering Invasion
12%inclusion22 decks189 decks
11%synergy
Rampant Growth
9.0%inclusion17 decks188 decks
-24%synergy
Rishkar's Expertise
8.0%inclusion15 decks188 decks
-1%synergy
Last March of the Ents
7.4%inclusion14 decks188 decks
4%synergy
Wargate
5.6%inclusion8 decks142 decks
3%synergy
Blasphemous Act
5.3%inclusion10 decks189 decks
-28%synergy
Utility Artifacts
Mystic Forge
49%inclusion92 decks189 decks
46%synergy
Herald's Horn
38%inclusion72 decks189 decks
32%synergy
Lightning Greaves
30%inclusion56 decks189 decks
5%synergy
Fist of Suns
23%inclusion33 decks142 decks
17%synergy
Darksteel Monolith
23%inclusion43 decks189 decks
22%synergy
Eldrazi Monument
20%inclusion37 decks189 decks
18%synergy
Sensei's Divining Top
19%inclusion35 decks189 decks
14%synergy
The Great Henge
18%inclusion34 decks188 decks
9%synergy
Expedition Map
16%inclusion31 decks189 decks
14%synergy
Skullclamp
16%inclusion30 decks189 decks
5%synergy
Idol of False Gods
15%inclusion28 decks181 decks
15%synergy
Swiftfoot Boots
14%inclusion27 decks189 decks
-13%synergy
Strionic Resonator
13%inclusion24 decks189 decks
10%synergy
Vanquisher's Banner
12%inclusion23 decks189 decks
9%synergy
Ashnod's Altar
10%inclusion19 decks189 decks
4%synergy
Ozolith, the Shattered Spire
8.5%inclusion16 decks188 decks
4%synergy
Mirage Mirror
7.9%inclusion15 decks189 decks
7%synergy
Mithril Coat
7.9%inclusion15 decks189 decks
4%synergy
Voltaic Key
7.4%inclusion14 decks189 decks
7%synergy
Vedalken Orrery
7.4%inclusion14 decks189 decks
6%synergy
Rings of Brighthearth
7.4%inclusion14 decks189 decks
6%synergy
Lithoform Engine
6.9%inclusion13 decks189 decks
6%synergy
Chimil, the Inner Sun
6.9%inclusion13 decks189 decks
5%synergy
Maskwood Nexus
6.9%inclusion13 decks189 decks
4%synergy
Idol of Oblivion
6.9%inclusion13 decks189 decks
2%synergy
The Endstone
6.7%inclusion4 decks60 decks
6%synergy
Moonsilver Key
5.8%inclusion11 decks189 decks
5%synergy
The Ozolith
5.3%inclusion10 decks189 decks
2%synergy
Enchantments
Path of Annihilation
50%inclusion90 decks181 decks
49%synergy
Awakening Zone
45%inclusion84 decks188 decks
42%synergy
Garruk's Uprising
26%inclusion48 decks188 decks
8%synergy
Rhythm of the Wild
25%inclusion47 decks188 decks
4%synergy
Up the Beanstalk
24%inclusion46 decks188 decks
21%synergy
Kindred Discovery
23%inclusion44 decks189 decks
16%synergy
Temur Ascendancy
21%inclusion40 decks188 decks
6%synergy
Spreading Plague
17%inclusion25 decks144 decks
17%synergy
Eldrazi Conscription
15%inclusion28 decks189 decks
14%synergy
Cryptolith Rite
13%inclusion25 decks188 decks
9%synergy
Leyline of Mutation
13%inclusion14 decks109 decks
9%synergy
Mana Maze
11%inclusion21 decks189 decks
11%synergy
Reflections of Littjara
10%inclusion19 decks189 decks
6%synergy
Molten Nursery
10%inclusion18 decks189 decks
9%synergy
Hardened Scales
9.0%inclusion17 decks188 decks
-1%synergy
Mana Echoes
9.0%inclusion17 decks189 decks
8%synergy
Parallel Lives
8.5%inclusion16 decks188 decks
2%synergy
Food Chain
8.0%inclusion15 decks188 decks
6%synergy
Sylvan Library
8.0%inclusion15 decks188 decks
-1%synergy
Monstrous Vortex
7.2%inclusion13 decks180 decks
6%synergy
Annie Joins Up
7.0%inclusion10 decks142 decks
-5%synergy
Descendants' Path
6.4%inclusion12 decks188 decks
5%synergy
Doubling Season
6.4%inclusion12 decks188 decks
-4%synergy
Mystic Remora
5.8%inclusion11 decks189 decks
-10%synergy
Shadow in the Warp
5.3%inclusion10 decks188 decks
3%synergy
Elemental Bond
5.3%inclusion10 decks188 decks
0%synergy
Planeswalkers
Ugin, Eye of the Storms
49%inclusion45 decks91 decks
48%synergy
Ugin, the Spirit Dragon
25%inclusion47 decks189 decks
24%synergy
Utility Lands
Sanctum of Ugin
60%inclusion114 decks189 decks
60%synergy
Reliquary Tower
48%inclusion90 decks189 decks
18%synergy
Urza's Power Plant
47%inclusion89 decks189 decks
45%synergy
Urza's Tower
47%inclusion89 decks189 decks
45%synergy
Urza's Mine
46%inclusion87 decks189 decks
44%synergy
Ugin's Labyrinth
46%inclusion85 decks185 decks
45%synergy
Tomb of the Spirit Dragon
42%inclusion79 decks189 decks
41%synergy
Cascading Cataracts
34%inclusion65 decks189 decks
33%synergy
Temple of the False God
25%inclusion47 decks189 decks
16%synergy
Bonders' Enclave
22%inclusion42 decks189 decks
20%synergy
Yavimaya, Cradle of Growth
19%inclusion36 decks189 decks
10%synergy
Urza's Saga
19%inclusion35 decks189 decks
12%synergy
Urza's Workshop
15%inclusion29 decks189 decks
15%synergy
Thespian's Stage
15%inclusion28 decks189 decks
12%synergy
Emergence Zone
14%inclusion27 decks189 decks
12%synergy
Three Tree City
14%inclusion23 decks162 decks
9%synergy
Spawning Bed
14%inclusion26 decks189 decks
13%synergy
Rogue's Passage
13%inclusion25 decks189 decks
-7%synergy
Vesuva
12%inclusion23 decks189 decks
11%synergy
Boseiju, Who Endures
10%inclusion19 decks188 decks
-9%synergy
Guildless Commons
10%inclusion19 decks189 decks
9%synergy
Inventors' Fair
10%inclusion18 decks189 decks
6%synergy
Alchemist's Refuge
8.5%inclusion16 decks188 decks
3%synergy
Urborg, Tomb of Yawgmoth
7.9%inclusion15 decks189 decks
-1%synergy
Otawara, Soaring City
7.9%inclusion15 decks189 decks
-8%synergy
Fountainport
7.5%inclusion12 decks160 decks
6%synergy
Tectonic Edge
7.4%inclusion14 decks189 decks
7%synergy
Trenchpost
6.7%inclusion12 decks180 decks
6%synergy
Glimmerpost
6.3%inclusion12 decks189 decks
6%synergy
Ruins of Oran-Rief
6.3%inclusion12 decks189 decks
6%synergy
Cloudpost
6.3%inclusion12 decks189 decks
6%synergy
Command Beacon
6.3%inclusion12 decks189 decks
1%synergy
Bojuka Bog
6.3%inclusion9 decks144 decks
-23%synergy
Strip Mine
5.8%inclusion11 decks189 decks
3%synergy
Deserted Temple
5.3%inclusion10 decks189 decks
4%synergy
Evendo, Waking Haven
5.1%inclusion3 decks59 decks
0%synergy
Mana Artifacts
Sol Ring
98%inclusion186 decks189 decks
15%synergy
Arcane Signet
75%inclusion141 decks189 decks
2%synergy
Thran Dynamo
44%inclusion83 decks189 decks
39%synergy
Chromatic Lantern
44%inclusion83 decks189 decks
35%synergy
Basalt Monolith
41%inclusion77 decks189 decks
38%synergy
Talisman of Curiosity
38%inclusion71 decks188 decks
25%synergy
Talisman of Impulse
30%inclusion57 decks188 decks
20%synergy
Talisman of Resilience
23%inclusion33 decks143 decks
11%synergy
Talisman of Creativity
19%inclusion36 decks189 decks
-9%synergy
Talisman of Dominance
19%inclusion27 decks144 decks
-13%synergy
Everflowing Chalice
17%inclusion33 decks189 decks
13%synergy
Chromatic Orrery
15%inclusion29 decks189 decks
14%synergy
Thought Vessel
15%inclusion29 decks189 decks
-2%synergy
Fellwar Stone
14%inclusion27 decks189 decks
-6%synergy
The Eternity Elevator
13%inclusion8 decks60 decks
12%synergy
Hedron Archive
13%inclusion24 decks189 decks
10%synergy
Talisman of Unity
11%inclusion15 decks142 decks
3%synergy
Worn Powerstone
7.9%inclusion15 decks189 decks
6%synergy
Mind Stone
6.9%inclusion13 decks189 decks
-7%synergy
Commander's Sphere
6.3%inclusion12 decks189 decks
-5%synergy
Timeless Lotus
6.3%inclusion9 decks142 decks
-5%synergy
Talisman of Hierarchy
6.3%inclusion9 decks142 decks
-20%synergy
Mana Crypt
5.8%inclusion11 decks189 decks
5%synergy
Talisman of Indulgence
5.6%inclusion8 decks144 decks
-22%synergy
Lands
Command Tower
91%inclusion172 decks189 decks
17%synergy
Yavimaya Coast
61%inclusion114 decks188 decks
34%synergy
Karplusan Forest
57%inclusion107 decks188 decks
37%synergy
Shivan Reef
56%inclusion106 decks189 decks
27%synergy
Llanowar Wastes
52%inclusion75 decks143 decks
25%synergy
Underground River
50%inclusion72 decks144 decks
27%synergy
Brushland
49%inclusion70 decks142 decks
29%synergy
Adarkar Wastes
45%inclusion64 decks142 decks
21%synergy
Exotic Orchard
45%inclusion85 decks189 decks
8%synergy
Cavern of Souls
44%inclusion83 decks189 decks
37%synergy
Sulfurous Springs
43%inclusion62 decks144 decks
19%synergy
Unclaimed Territory
42%inclusion79 decks189 decks
37%synergy
Secluded Courtyard
42%inclusion79 decks189 decks
37%synergy
Corrupted Crossroads
40%inclusion76 decks189 decks
40%synergy
Battlefield Forge
39%inclusion56 decks142 decks
10%synergy
Path of Ancestry
37%inclusion69 decks189 decks
14%synergy
Caves of Koilos
36%inclusion51 decks142 decks
7%synergy
The World Tree
33%inclusion47 decks142 decks
6%synergy
Urza's Cave
28%inclusion52 decks185 decks
25%synergy
Breeding Pool
28%inclusion52 decks188 decks
-14%synergy
Wooded Foothills
28%inclusion52 decks189 decks
17%synergy
Ketria Triome
27%inclusion51 decks188 decks
-3%synergy
Misty Rainforest
26%inclusion50 decks189 decks
15%synergy
Stomping Ground
24%inclusion46 decks188 decks
-17%synergy
Scalding Tarn
21%inclusion39 decks189 decks
10%synergy
Steam Vents
21%inclusion39 decks189 decks
-18%synergy
Mana Confluence
20%inclusion37 decks189 decks
13%synergy
Reflecting Pool
19%inclusion36 decks189 decks
14%synergy
City of Brass
19%inclusion35 decks189 decks
11%synergy
Opal Palace
17%inclusion32 decks189 decks
15%synergy
Twisted Landscape
15%inclusion21 decks137 decks
6%synergy
Tranquil Landscape
15%inclusion20 decks136 decks
7%synergy
Planar Nexus
15%inclusion27 decks185 decks
14%synergy
Tropical Island
14%inclusion26 decks188 decks
0%synergy
Windswept Heath
14%inclusion26 decks189 decks
3%synergy
Bountiful Landscape
13%inclusion24 decks179 decks
4%synergy
Taiga
13%inclusion25 decks188 decks
0%synergy
Zagoth Triome
13%inclusion19 decks143 decks
-14%synergy
Spire Garden
13%inclusion24 decks188 decks
-9%synergy
Polluted Delta
13%inclusion24 decks189 decks
1%synergy
Overgrown Tomb
13%inclusion18 decks143 decks
-29%synergy
Bloodstained Mire
12%inclusion23 decks189 decks
1%synergy
Flooded Strand
12%inclusion23 decks189 decks
1%synergy
Rejuvenating Springs
12%inclusion22 decks188 decks
-14%synergy
Bayou
11%inclusion16 decks143 decks
-2%synergy
Frontier Bivouac
11%inclusion21 decks188 decks
-17%synergy
Verdant Catacombs
11%inclusion21 decks189 decks
0%synergy
Volcanic Island
11%inclusion21 decks189 decks
-3%synergy
Training Center
11%inclusion21 decks189 decks
-13%synergy
Temple Garden
11%inclusion15 decks142 decks
-29%synergy