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%inclusion96 decks26.1K decks
Animar, Soul of Elements
0.2%inclusion44 decks21.4K decks
Morophon, the Boundless
0.2%inclusion27 decks13.7K decks
Azlask, the Swelling Scourge
0.1%inclusion12 decks13.8K decks
Kenrith, the Returned King
0.0%inclusion2 decks28.3K decks
Garth One-Eye
0.0%inclusion2 decks4.90K decks
Eshki, Temur's Roar
0.0%inclusion1 decks10.6K decks
Intet, the Dreamer
0.1%inclusion1 decks1.03K decks
Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept
0.0%inclusion1 decks6.84K decks
Surrak Dragonclaw
0.0%inclusion1 decks2.08K decks
Yidris, Maelstrom Wielder
0.0%inclusion1 decks8.60K decks
New Cards
Gathering Stone
4.3%inclusion1 decks23 decks
3%synergy
Chronicle of Victory
4.3%inclusion1 decks23 decks
2%synergy
Abundant Countryside
4.3%inclusion1 decks23 decks
3%synergy
Mutable Explorer
2.9%inclusion1 decks35 decks
2%synergy
High Synergy Cards
Eldrazi Temple
89%inclusion168 decks188 decks
88%synergy
All Is Dust
84%inclusion158 decks188 decks
82%synergy
Forsaken Monument
82%inclusion154 decks188 decks
80%synergy
Glaring Fleshraker
82%inclusion141 decks173 decks
80%synergy
Echoes of Eternity
76%inclusion132 decks173 decks
75%synergy
Conduit of Ruin
73%inclusion138 decks188 decks
73%synergy
Eye of Ugin
69%inclusion130 decks188 decks
69%synergy
Shrine of the Forsaken Gods
69%inclusion130 decks188 decks
68%synergy
Kozilek's Unsealing
69%inclusion120 decks175 decks
67%synergy
Ulamog, the Ceaseless Hunger
67%inclusion126 decks188 decks
66%synergy
Top Cards
Urza's Incubator
69%inclusion129 decks188 decks
65%synergy
Ugin's Binding
66%inclusion113 decks171 decks
65%synergy
Sire of Stagnation
65%inclusion91 decks141 decks
62%synergy
Ulamog, the Defiler
64%inclusion110 decks173 decks
63%synergy
From Beyond
61%inclusion115 decks187 decks
61%synergy
Oblivion Sower
61%inclusion114 decks188 decks
60%synergy
It That Heralds the End
59%inclusion110 decks188 decks
58%synergy
Kozilek, Butcher of Truth
59%inclusion110 decks188 decks
57%synergy
Artisan of Kozilek
59%inclusion110 decks188 decks
57%synergy
Kozilek, the Great Distortion
58%inclusion109 decks188 decks
57%synergy
Game Changers
Ancient Tomb
32%inclusion61 decks188 decks
23%synergy
Rhystic Study
29%inclusion55 decks188 decks
6%synergy
Demonic Tutor
26%inclusion36 decks141 decks
6%synergy
Smothering Tithe
24%inclusion34 decks139 decks
3%synergy
Fierce Guardianship
21%inclusion39 decks188 decks
3%synergy
Mana Vault
20%inclusion38 decks188 decks
14%synergy
Vampiric Tutor
20%inclusion28 decks141 decks
5%synergy
The One Ring
13%inclusion25 decks188 decks
5%synergy
Grim Monolith
8.0%inclusion15 decks188 decks
6%synergy
Field of the Dead
5.9%inclusion11 decks188 decks
3%synergy
Creatures
Spawnbed Protector
57%inclusion97 decks171 decks
56%synergy
Ulamog, the Infinite Gyre
52%inclusion97 decks188 decks
50%synergy
World Breaker
51%inclusion96 decks187 decks
51%synergy
Sowing Mycospawn
51%inclusion88 decks172 decks
49%synergy
Eldrazi Displacer
51%inclusion71 decks139 decks
50%synergy
Nulldrifter
50%inclusion88 decks176 decks
49%synergy
Hideous Taskmaster
48%inclusion83 decks173 decks
47%synergy
Zhulodok, Void Gorger
48%inclusion90 decks188 decks
47%synergy
Void Winnower
47%inclusion89 decks188 decks
46%synergy
Snapping Voidcraw
45%inclusion76 decks170 decks
43%synergy
It That Betrays
45%inclusion84 decks188 decks
44%synergy
Kozilek, the Broken Reality
43%inclusion74 decks173 decks
42%synergy
Endbringer
43%inclusion80 decks188 decks
42%synergy
Flayer of Loyalties
41%inclusion78 decks188 decks
41%synergy
Emrakul, the Promised End
41%inclusion77 decks188 decks
40%synergy
Emrakul, the World Anew
39%inclusion74 decks188 decks
39%synergy
Skittering Cicada
38%inclusion71 decks188 decks
37%synergy
Roaming Throne
36%inclusion67 decks188 decks
29%synergy
Chittering Dispatcher
35%inclusion60 decks170 decks
34%synergy
Catacomb Sifter
35%inclusion49 decks140 decks
34%synergy
Wastescape Battlemage
34%inclusion58 decks170 decks
33%synergy
Deepfathom Skulker
34%inclusion63 decks188 decks
33%synergy
Writhing Chrysalis
33%inclusion56 decks172 decks
31%synergy
Morophon, the Boundless
29%inclusion40 decks139 decks
15%synergy
Liberator, Urza's Battlethopter
28%inclusion52 decks188 decks
26%synergy
Drowner of Hope
27%inclusion51 decks188 decks
27%synergy
Void Grafter
27%inclusion50 decks187 decks
26%synergy
Brood Monitor
27%inclusion50 decks187 decks
26%synergy
Benthic Anomaly
26%inclusion44 decks171 decks
25%synergy
Flayer Drone
23%inclusion33 decks141 decks
23%synergy
Sifter of Skulls
23%inclusion33 decks141 decks
22%synergy
Spawn-Gang Commander
23%inclusion40 decks176 decks
22%synergy
Forerunner of Slaughter
23%inclusion32 decks141 decks
22%synergy
Thief of Existence
22%inclusion38 decks172 decks
22%synergy
Sire of Seven Deaths
22%inclusion28 decks128 decks
21%synergy
Eyeless Watcher
20%inclusion38 decks187 decks
20%synergy
Birds of Paradise
20%inclusion37 decks187 decks
-8%synergy
Azlask, the Swelling Scourge
20%inclusion25 decks128 decks
18%synergy
Ulamog's Dreadsire
18%inclusion31 decks171 decks
18%synergy
Ancestral Statue
18%inclusion34 decks188 decks
18%synergy
Bismuth Mindrender
18%inclusion23 decks129 decks
17%synergy
Anticausal Vestige
18%inclusion9 decks51 decks
16%synergy
Endless One
17%inclusion32 decks188 decks
17%synergy
Breaker of Creation
16%inclusion29 decks176 decks
16%synergy
Ulamog's Nullifier
16%inclusion23 decks141 decks
16%synergy
Herigast, Erupting Nullkite
16%inclusion28 decks176 decks
15%synergy
Ultima, Origin of Oblivion
15%inclusion10 decks65 decks
15%synergy
Jodah, Archmage Eternal
15%inclusion21 decks139 decks
12%synergy
Pathrazer of Ulamog
15%inclusion28 decks188 decks
14%synergy
Smothering Abomination
15%inclusion21 decks141 decks
14%synergy
Instants
Eldritch Immunity
58%inclusion99 decks171 decks
57%synergy
Kozilek's Command
54%inclusion93 decks171 decks
54%synergy
Null Elemental Blast
40%inclusion70 decks176 decks
39%synergy
Eldrazi Confluence
32%inclusion54 decks171 decks
31%synergy
Titan's Presence
28%inclusion53 decks188 decks
28%synergy
Warping Wail
24%inclusion45 decks188 decks
23%synergy
Kozilek's Return
22%inclusion41 decks188 decks
21%synergy
Not of This World
21%inclusion39 decks188 decks
20%synergy
Desecrate Reality
20%inclusion37 decks188 decks
19%synergy
Mana Drain
20%inclusion37 decks188 decks
5%synergy
Cyclonic Rift
20%inclusion37 decks188 decks
-2%synergy
Return of the Wildspeaker
19%inclusion35 decks187 decks
8%synergy
Heroic Intervention
16%inclusion30 decks187 decks
-14%synergy
Counterspell
15%inclusion29 decks188 decks
-26%synergy
Abstruse Appropriation
14%inclusion18 decks128 decks
13%synergy
Worldly Tutor
14%inclusion26 decks187 decks
2%synergy
Void Shatter
14%inclusion26 decks188 decks
14%synergy
Enlightened Tutor
13%inclusion18 decks139 decks
-2%synergy
Swords to Plowshares
13%inclusion18 decks139 decks
-48%synergy
Spell Shrivel
12%inclusion22 decks188 decks
12%synergy
Deflecting Swat
12%inclusion22 decks188 decks
-5%synergy
Crib Swap
10%inclusion14 decks139 decks
9%synergy
Unfathomable Truths
8.7%inclusion15 decks172 decks
8%synergy
Crop Rotation
8.0%inclusion15 decks187 decks
-2%synergy
Teferi's Protection
6.5%inclusion9 decks139 decks
-10%synergy
Assassin's Trophy
6.4%inclusion9 decks140 decks
-24%synergy
An Offer You Can't Refuse
6.4%inclusion12 decks188 decks
-18%synergy
Kindred Summons
5.3%inclusion10 decks187 decks
4%synergy
Ego Erasure
5.3%inclusion10 decks188 decks
5%synergy
Eladamri's Call
5.0%inclusion7 decks139 decks
-4%synergy
Despark
5.0%inclusion7 decks139 decks
-9%synergy
Path to Exile
5.0%inclusion7 decks139 decks
-42%synergy
Sorceries
Rise of the Eldrazi
34%inclusion63 decks188 decks
33%synergy
Sylvan Scrying
22%inclusion42 decks187 decks
20%synergy
Farseek
19%inclusion36 decks187 decks
-17%synergy
Ancient Stirrings
19%inclusion35 decks187 decks
18%synergy
Cultivate
18%inclusion34 decks187 decks
-24%synergy
Selective Obliteration
18%inclusion31 decks171 decks
18%synergy
Tempt with Discovery
16%inclusion29 decks187 decks
12%synergy
Nature's Lore
15%inclusion28 decks187 decks
-16%synergy
Calamity of the Titans
15%inclusion28 decks188 decks
15%synergy
Three Visits
13%inclusion25 decks187 decks
-11%synergy
Kodama's Reach
13%inclusion25 decks187 decks
-14%synergy
Skittering Invasion
11%inclusion21 decks188 decks
11%synergy
Rampant Growth
9.1%inclusion17 decks187 decks
-24%synergy
Last March of the Ents
7.5%inclusion14 decks187 decks
4%synergy
Rishkar's Expertise
7.5%inclusion14 decks187 decks
-2%synergy
Wargate
6.5%inclusion9 decks139 decks
4%synergy
Utility Artifacts
Mystic Forge
48%inclusion91 decks188 decks
45%synergy
Herald's Horn
38%inclusion71 decks188 decks
32%synergy
Lightning Greaves
29%inclusion55 decks188 decks
5%synergy
Fist of Suns
27%inclusion37 decks139 decks
21%synergy
Darksteel Monolith
23%inclusion43 decks188 decks
22%synergy
The Great Henge
19%inclusion36 decks187 decks
10%synergy
Eldrazi Monument
19%inclusion35 decks188 decks
17%synergy
Sensei's Divining Top
18%inclusion34 decks188 decks
14%synergy
Expedition Map
17%inclusion32 decks188 decks
14%synergy
Skullclamp
15%inclusion29 decks188 decks
4%synergy
Idol of False Gods
15%inclusion25 decks172 decks
14%synergy
Swiftfoot Boots
14%inclusion27 decks188 decks
-13%synergy
Vanquisher's Banner
13%inclusion24 decks188 decks
9%synergy
Strionic Resonator
11%inclusion21 decks188 decks
9%synergy
Ozolith, the Shattered Spire
8.6%inclusion16 decks187 decks
4%synergy
Ashnod's Altar
8.5%inclusion16 decks188 decks
2%synergy
Mirage Mirror
8.0%inclusion15 decks188 decks
7%synergy
Mithril Coat
8.0%inclusion15 decks188 decks
4%synergy
Chimil, the Inner Sun
7.4%inclusion14 decks188 decks
6%synergy
Lithoform Engine
6.9%inclusion13 decks188 decks
6%synergy
Rings of Brighthearth
6.9%inclusion13 decks188 decks
6%synergy
Voltaic Key
6.4%inclusion12 decks188 decks
6%synergy
Vedalken Orrery
6.4%inclusion12 decks188 decks
5%synergy
Maskwood Nexus
6.4%inclusion12 decks188 decks
4%synergy
The Endstone
5.9%inclusion3 decks51 decks
5%synergy
Moonsilver Key
5.9%inclusion11 decks188 decks
5%synergy
Idol of Oblivion
5.9%inclusion11 decks188 decks
1%synergy
The Ozolith
5.3%inclusion10 decks188 decks
2%synergy
Enchantments
Path of Annihilation
49%inclusion85 decks172 decks
49%synergy
Awakening Zone
46%inclusion86 decks187 decks
44%synergy
Garruk's Uprising
25%inclusion47 decks187 decks
8%synergy
Rhythm of the Wild
25%inclusion47 decks187 decks
3%synergy
Kindred Discovery
25%inclusion47 decks188 decks
18%synergy
Up the Beanstalk
25%inclusion46 decks187 decks
21%synergy
Temur Ascendancy
24%inclusion44 decks187 decks
8%synergy
Spreading Plague
19%inclusion27 decks141 decks
19%synergy
Eldrazi Conscription
15%inclusion29 decks188 decks
14%synergy
Cryptolith Rite
14%inclusion27 decks187 decks
11%synergy
Leyline of Mutation
13%inclusion13 decks100 decks
9%synergy
Mana Maze
13%inclusion24 decks188 decks
13%synergy
Molten Nursery
11%inclusion21 decks188 decks
11%synergy
Reflections of Littjara
10%inclusion18 decks188 decks
5%synergy
Hardened Scales
9.1%inclusion17 decks187 decks
-1%synergy
Sylvan Library
8.6%inclusion16 decks187 decks
0%synergy
Food Chain
7.5%inclusion14 decks187 decks
6%synergy
Mana Echoes
7.4%inclusion14 decks188 decks
7%synergy
Monstrous Vortex
7.0%inclusion12 decks171 decks
5%synergy
Parallel Lives
7.0%inclusion13 decks187 decks
1%synergy
Annie Joins Up
6.6%inclusion9 decks136 decks
-6%synergy
Descendants' Path
6.4%inclusion12 decks187 decks
5%synergy
Doubling Season
5.9%inclusion11 decks187 decks
-4%synergy
Mystic Remora
5.9%inclusion11 decks188 decks
-10%synergy
Shadow in the Warp
5.3%inclusion10 decks187 decks
3%synergy
Elemental Bond
5.3%inclusion10 decks187 decks
0%synergy
Planeswalkers
Ugin, Eye of the Storms
50%inclusion41 decks82 decks
49%synergy
Ugin, the Spirit Dragon
28%inclusion53 decks188 decks
27%synergy
Utility Lands
Sanctum of Ugin
62%inclusion117 decks188 decks
62%synergy
Reliquary Tower
47%inclusion88 decks188 decks
17%synergy
Ugin's Labyrinth
47%inclusion82 decks176 decks
46%synergy
Urza's Power Plant
46%inclusion86 decks188 decks
44%synergy
Urza's Tower
46%inclusion86 decks188 decks
44%synergy
Urza's Mine
45%inclusion84 decks188 decks
43%synergy
Tomb of the Spirit Dragon
42%inclusion79 decks188 decks
41%synergy
Cascading Cataracts
35%inclusion66 decks188 decks
34%synergy
Temple of the False God
26%inclusion49 decks188 decks
17%synergy
Bonders' Enclave
23%inclusion43 decks188 decks
20%synergy
Urza's Saga
20%inclusion37 decks188 decks
13%synergy
Yavimaya, Cradle of Growth
20%inclusion37 decks188 decks
11%synergy
Three Tree City
14%inclusion22 decks153 decks
9%synergy
Urza's Workshop
14%inclusion27 decks188 decks
14%synergy
Thespian's Stage
14%inclusion27 decks188 decks
12%synergy
Rogue's Passage
14%inclusion26 decks188 decks
-6%synergy
Emergence Zone
13%inclusion25 decks188 decks
11%synergy
Spawning Bed
13%inclusion24 decks188 decks
12%synergy
Vesuva
11%inclusion21 decks188 decks
10%synergy
Boseiju, Who Endures
10%inclusion19 decks187 decks
-9%synergy
Guildless Commons
10%inclusion19 decks188 decks
9%synergy
Inventors' Fair
9.0%inclusion17 decks188 decks
5%synergy
Urborg, Tomb of Yawgmoth
9.0%inclusion17 decks188 decks
0%synergy
Otawara, Soaring City
8.0%inclusion15 decks188 decks
-8%synergy
Fountainport
7.9%inclusion12 decks151 decks
6%synergy
Bojuka Bog
7.8%inclusion11 decks141 decks
-22%synergy
Alchemist's Refuge
7.5%inclusion14 decks187 decks
1%synergy
Trenchpost
7.0%inclusion12 decks171 decks
7%synergy
Ruins of Oran-Rief
6.9%inclusion13 decks188 decks
7%synergy
Glimmerpost
6.4%inclusion12 decks188 decks
6%synergy
Cloudpost
6.4%inclusion12 decks188 decks
6%synergy
Tectonic Edge
6.4%inclusion12 decks188 decks
6%synergy
Evendo, Waking Haven
6.0%inclusion3 decks50 decks
1%synergy
Command Beacon
5.9%inclusion11 decks188 decks
1%synergy
Deserted Temple
5.3%inclusion10 decks188 decks
4%synergy
Homeward Path
5.3%inclusion10 decks188 decks
4%synergy
Mana Artifacts
Sol Ring
98%inclusion185 decks188 decks
15%synergy
Arcane Signet
76%inclusion142 decks188 decks
3%synergy
Chromatic Lantern
46%inclusion86 decks188 decks
37%synergy
Thran Dynamo
41%inclusion78 decks188 decks
37%synergy
Basalt Monolith
40%inclusion75 decks188 decks
37%synergy
Talisman of Curiosity
37%inclusion69 decks187 decks
24%synergy
Talisman of Impulse
30%inclusion56 decks187 decks
19%synergy
Talisman of Resilience
23%inclusion32 decks140 decks
10%synergy
Talisman of Dominance
19%inclusion27 decks141 decks
-13%synergy
Talisman of Creativity
19%inclusion35 decks188 decks
-9%synergy
Everflowing Chalice
16%inclusion31 decks188 decks
12%synergy
Chromatic Orrery
15%inclusion29 decks188 decks
14%synergy
Fellwar Stone
15%inclusion28 decks188 decks
-6%synergy
Thought Vessel
14%inclusion27 decks188 decks
-3%synergy
The Eternity Elevator
12%inclusion6 decks51 decks
10%synergy
Hedron Archive
12%inclusion22 decks188 decks
9%synergy
Talisman of Unity
9.4%inclusion13 decks139 decks
2%synergy
Mana Crypt
8.0%inclusion15 decks188 decks
6%synergy
Timeless Lotus
6.5%inclusion9 decks139 decks
-4%synergy
Talisman of Hierarchy
6.5%inclusion9 decks139 decks
-20%synergy
Worn Powerstone
6.4%inclusion12 decks188 decks
4%synergy
Commander's Sphere
5.9%inclusion11 decks188 decks
-6%synergy
Talisman of Indulgence
5.7%inclusion8 decks141 decks
-22%synergy
Dreamstone Hedron
5.3%inclusion10 decks188 decks
4%synergy
Mind Stone
5.3%inclusion10 decks188 decks
-9%synergy
Lands
Command Tower
91%inclusion171 decks188 decks
17%synergy
Yavimaya Coast
59%inclusion111 decks187 decks
32%synergy
Shivan Reef
54%inclusion101 decks188 decks
24%synergy
Karplusan Forest
53%inclusion100 decks187 decks
33%synergy
Llanowar Wastes
52%inclusion73 decks140 decks
25%synergy
Underground River
49%inclusion69 decks141 decks
26%synergy
Exotic Orchard
47%inclusion88 decks188 decks
10%synergy
Brushland
46%inclusion64 decks139 decks
26%synergy
Adarkar Wastes
44%inclusion61 decks139 decks
20%synergy
Cavern of Souls
43%inclusion81 decks188 decks
36%synergy
Corrupted Crossroads
43%inclusion80 decks188 decks
42%synergy
Unclaimed Territory
42%inclusion79 decks188 decks
38%synergy
Secluded Courtyard
41%inclusion78 decks188 decks
37%synergy
Sulfurous Springs
41%inclusion58 decks141 decks
18%synergy
Battlefield Forge
38%inclusion53 decks139 decks
9%synergy
Path of Ancestry
37%inclusion69 decks188 decks
15%synergy
The World Tree
35%inclusion48 decks139 decks
7%synergy
Caves of Koilos
35%inclusion48 decks139 decks
5%synergy
Breeding Pool
28%inclusion53 decks187 decks
-14%synergy
Ketria Triome
28%inclusion52 decks187 decks
-3%synergy
Wooded Foothills
27%inclusion51 decks188 decks
16%synergy
Urza's Cave
27%inclusion47 decks176 decks
24%synergy
Misty Rainforest
26%inclusion49 decks188 decks
15%synergy
Stomping Ground
25%inclusion47 decks187 decks
-16%synergy
Reflecting Pool
21%inclusion40 decks188 decks
16%synergy
Steam Vents
21%inclusion40 decks188 decks
-17%synergy
Mana Confluence
20%inclusion38 decks188 decks
13%synergy
City of Brass
20%inclusion38 decks188 decks
13%synergy
Scalding Tarn
20%inclusion38 decks188 decks
9%synergy
Opal Palace
18%inclusion33 decks188 decks
15%synergy
Twisted Landscape
15%inclusion19 decks128 decks
5%synergy
Zagoth Triome
14%inclusion20 decks140 decks
-13%synergy
Planar Nexus
14%inclusion25 decks176 decks
14%synergy
Tranquil Landscape
14%inclusion18 decks127 decks
6%synergy
Bountiful Landscape
14%inclusion24 decks170 decks
5%synergy
Tropical Island
13%inclusion25 decks187 decks
-1%synergy
Spire Garden
13%inclusion25 decks187 decks
-8%synergy
Windswept Heath
13%inclusion25 decks188 decks
2%synergy
Taiga
13%inclusion24 decks187 decks
0%synergy
Frontier Bivouac
13%inclusion24 decks187 decks
-16%synergy
Bloodstained Mire
12%inclusion23 decks188 decks
1%synergy
Polluted Delta
12%inclusion23 decks188 decks
0%synergy
Overgrown Tomb
12%inclusion17 decks140 decks
-29%synergy
Rejuvenating Springs
12%inclusion22 decks187 decks
-15%synergy
Bayou
11%inclusion16 decks140 decks
-2%synergy
Flooded Strand
11%inclusion21 decks188 decks
0%synergy
Volcanic Island
11%inclusion21 decks188 decks
-3%synergy
Training Center
11%inclusion21 decks188 decks
-14%synergy
Temple Garden
11%inclusion15 decks139 decks
-28%synergy
Hallowed Fountain
11%inclusion15 decks139 decks
-29%synergy