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%inclusion93 decks25.6K decks
Animar, Soul of Elements
0.2%inclusion43 decks21.3K decks
Morophon, the Boundless
0.2%inclusion29 decks13.5K decks
Azlask, the Swelling Scourge
0.1%inclusion12 decks13.6K decks
Kenrith, the Returned King
0.0%inclusion2 decks28K decks
Garth One-Eye
0.0%inclusion2 decks4.87K decks
Eshki, Temur's Roar
0.0%inclusion1 decks10.3K decks
Intet, the Dreamer
0.1%inclusion1 decks1.02K decks
Rograkh, Son of Rohgahh // Silas Renn, Seeker Adept
0.0%inclusion1 decks6.65K decks
Surrak Dragonclaw
0.0%inclusion1 decks2.07K decks
Yidris, Maelstrom Wielder
0.0%inclusion1 decks8.45K decks
New Cards
Gathering Stone
5.3%inclusion1 decks19 decks
4%synergy
Chronicle of Victory
5.3%inclusion1 decks19 decks
3%synergy
Abundant Countryside
5.3%inclusion1 decks19 decks
4%synergy
Mutable Explorer
3.2%inclusion1 decks31 decks
2%synergy
High Synergy Cards
Eldrazi Temple
89%inclusion166 decks186 decks
88%synergy
All Is Dust
84%inclusion157 decks186 decks
83%synergy
Glaring Fleshraker
81%inclusion137 decks169 decks
80%synergy
Forsaken Monument
81%inclusion150 decks186 decks
79%synergy
Echoes of Eternity
75%inclusion127 decks169 decks
74%synergy
Conduit of Ruin
73%inclusion136 decks186 decks
72%synergy
Eye of Ugin
69%inclusion129 decks186 decks
69%synergy
Shrine of the Forsaken Gods
69%inclusion129 decks186 decks
68%synergy
Kozilek's Unsealing
69%inclusion118 decks171 decks
68%synergy
Ulamog, the Ceaseless Hunger
67%inclusion124 decks186 decks
65%synergy
Top Cards
Urza's Incubator
69%inclusion128 decks186 decks
65%synergy
Ugin's Binding
66%inclusion110 decks167 decks
65%synergy
Sire of Stagnation
66%inclusion92 decks140 decks
63%synergy
Ulamog, the Defiler
63%inclusion106 decks169 decks
62%synergy
From Beyond
62%inclusion114 decks185 decks
61%synergy
Oblivion Sower
60%inclusion112 decks186 decks
59%synergy
Kozilek, Butcher of Truth
59%inclusion110 decks186 decks
58%synergy
Artisan of Kozilek
59%inclusion110 decks186 decks
58%synergy
Eldritch Immunity
59%inclusion98 decks167 decks
58%synergy
Kozilek, the Great Distortion
58%inclusion108 decks186 decks
57%synergy
Game Changers
Ancient Tomb
33%inclusion61 decks186 decks
23%synergy
Rhystic Study
28%inclusion53 decks186 decks
5%synergy
Demonic Tutor
26%inclusion37 decks140 decks
7%synergy
Smothering Tithe
25%inclusion35 decks138 decks
4%synergy
Mana Vault
20%inclusion38 decks186 decks
15%synergy
Fierce Guardianship
20%inclusion38 decks186 decks
3%synergy
Vampiric Tutor
20%inclusion28 decks140 decks
5%synergy
The One Ring
13%inclusion24 decks186 decks
5%synergy
Grim Monolith
8.1%inclusion15 decks186 decks
6%synergy
Field of the Dead
5.4%inclusion10 decks186 decks
2%synergy
Creatures
It That Heralds the End
57%inclusion106 decks186 decks
56%synergy
Spawnbed Protector
56%inclusion94 decks167 decks
56%synergy
World Breaker
52%inclusion97 decks185 decks
52%synergy
Eldrazi Displacer
52%inclusion72 decks138 decks
51%synergy
Sowing Mycospawn
52%inclusion87 decks168 decks
50%synergy
Ulamog, the Infinite Gyre
52%inclusion96 decks186 decks
50%synergy
Nulldrifter
49%inclusion85 decks172 decks
48%synergy
Hideous Taskmaster
48%inclusion81 decks169 decks
47%synergy
Zhulodok, Void Gorger
48%inclusion89 decks186 decks
47%synergy
Void Winnower
48%inclusion89 decks186 decks
47%synergy
It That Betrays
45%inclusion83 decks186 decks
44%synergy
Snapping Voidcraw
45%inclusion74 decks166 decks
43%synergy
Endbringer
42%inclusion79 decks186 decks
42%synergy
Kozilek, the Broken Reality
42%inclusion71 decks169 decks
41%synergy
Flayer of Loyalties
41%inclusion77 decks186 decks
41%synergy
Emrakul, the Promised End
41%inclusion77 decks186 decks
41%synergy
Skittering Cicada
38%inclusion71 decks186 decks
38%synergy
Emrakul, the World Anew
38%inclusion70 decks186 decks
37%synergy
Catacomb Sifter
37%inclusion51 decks139 decks
36%synergy
Chittering Dispatcher
36%inclusion59 decks166 decks
35%synergy
Roaming Throne
35%inclusion66 decks186 decks
29%synergy
Deepfathom Skulker
34%inclusion64 decks186 decks
34%synergy
Wastescape Battlemage
34%inclusion57 decks166 decks
33%synergy
Writhing Chrysalis
33%inclusion55 decks168 decks
32%synergy
Morophon, the Boundless
29%inclusion40 decks138 decks
15%synergy
Drowner of Hope
28%inclusion53 decks186 decks
28%synergy
Brood Monitor
28%inclusion51 decks185 decks
27%synergy
Void Grafter
27%inclusion50 decks185 decks
27%synergy
Liberator, Urza's Battlethopter
27%inclusion50 decks186 decks
26%synergy
Benthic Anomaly
26%inclusion43 decks167 decks
25%synergy
Sifter of Skulls
25%inclusion35 decks140 decks
24%synergy
Flayer Drone
24%inclusion34 decks140 decks
24%synergy
Forerunner of Slaughter
24%inclusion33 decks140 decks
23%synergy
Spawn-Gang Commander
23%inclusion39 decks172 decks
22%synergy
Thief of Existence
22%inclusion37 decks168 decks
22%synergy
Eyeless Watcher
22%inclusion40 decks185 decks
21%synergy
Sire of Seven Deaths
20%inclusion25 decks124 decks
19%synergy
Azlask, the Swelling Scourge
20%inclusion25 decks125 decks
18%synergy
Birds of Paradise
19%inclusion36 decks185 decks
-8%synergy
Ancestral Statue
18%inclusion33 decks186 decks
18%synergy
Bismuth Mindrender
17%inclusion22 decks126 decks
17%synergy
Ulamog's Dreadsire
17%inclusion29 decks167 decks
17%synergy
Ulamog's Nullifier
17%inclusion24 decks140 decks
17%synergy
Anticausal Vestige
17%inclusion8 decks47 decks
16%synergy
Endless One
17%inclusion31 decks186 decks
16%synergy
Breaker of Creation
16%inclusion28 decks172 decks
16%synergy
Smothering Abomination
16%inclusion22 decks140 decks
15%synergy
Herigast, Erupting Nullkite
16%inclusion27 decks172 decks
15%synergy
Jodah, Archmage Eternal
15%inclusion21 decks138 decks
12%synergy
Ulalek, Fused Atrocity
15%inclusion19 decks125 decks
14%synergy
Instants
Kozilek's Command
54%inclusion91 decks167 decks
54%synergy
Null Elemental Blast
40%inclusion68 decks172 decks
39%synergy
Eldrazi Confluence
32%inclusion53 decks167 decks
31%synergy
Titan's Presence
28%inclusion52 decks186 decks
27%synergy
Warping Wail
24%inclusion44 decks186 decks
23%synergy
Kozilek's Return
22%inclusion40 decks186 decks
21%synergy
Not of This World
22%inclusion40 decks186 decks
21%synergy
Desecrate Reality
20%inclusion37 decks186 decks
19%synergy
Mana Drain
20%inclusion37 decks186 decks
5%synergy
Cyclonic Rift
20%inclusion37 decks186 decks
-2%synergy
Return of the Wildspeaker
18%inclusion34 decks185 decks
7%synergy
Counterspell
16%inclusion29 decks186 decks
-26%synergy
Heroic Intervention
15%inclusion28 decks185 decks
-15%synergy
Void Shatter
15%inclusion28 decks186 decks
15%synergy
Abstruse Appropriation
14%inclusion18 decks125 decks
13%synergy
Worldly Tutor
14%inclusion26 decks185 decks
2%synergy
Enlightened Tutor
13%inclusion18 decks138 decks
-2%synergy
Spell Shrivel
12%inclusion23 decks186 decks
12%synergy
Swords to Plowshares
12%inclusion17 decks138 decks
-49%synergy
Deflecting Swat
12%inclusion22 decks186 decks
-5%synergy
Crib Swap
10%inclusion14 decks138 decks
9%synergy
Unfathomable Truths
8.9%inclusion15 decks168 decks
9%synergy
Crop Rotation
8.1%inclusion15 decks185 decks
-2%synergy
Assassin's Trophy
6.5%inclusion9 decks139 decks
-24%synergy
An Offer You Can't Refuse
6.5%inclusion12 decks186 decks
-18%synergy
Despark
5.8%inclusion8 decks138 decks
-8%synergy
Teferi's Protection
5.8%inclusion8 decks138 decks
-11%synergy
Eladamri's Call
5.1%inclusion7 decks138 decks
-4%synergy
Path to Exile
5.1%inclusion7 decks138 decks
-42%synergy
Sorceries
Rise of the Eldrazi
33%inclusion62 decks186 decks
33%synergy
Sylvan Scrying
21%inclusion39 decks185 decks
18%synergy
Selective Obliteration
19%inclusion31 decks167 decks
18%synergy
Ancient Stirrings
18%inclusion34 decks185 decks
18%synergy
Farseek
18%inclusion34 decks185 decks
-18%synergy
Cultivate
17%inclusion32 decks185 decks
-25%synergy
Tempt with Discovery
15%inclusion28 decks185 decks
11%synergy
Calamity of the Titans
15%inclusion28 decks186 decks
15%synergy
Nature's Lore
15%inclusion27 decks185 decks
-17%synergy
Three Visits
13%inclusion24 decks185 decks
-11%synergy
Kodama's Reach
12%inclusion23 decks185 decks
-15%synergy
Skittering Invasion
12%inclusion22 decks186 decks
11%synergy
Rampant Growth
8.6%inclusion16 decks185 decks
-24%synergy
Rishkar's Expertise
7.6%inclusion14 decks185 decks
-2%synergy
Wargate
7.2%inclusion10 decks138 decks
5%synergy
Last March of the Ents
7.0%inclusion13 decks185 decks
4%synergy
Utility Artifacts
Mystic Forge
49%inclusion92 decks186 decks
47%synergy
Herald's Horn
38%inclusion70 decks186 decks
32%synergy
Lightning Greaves
28%inclusion53 decks186 decks
4%synergy
Fist of Suns
28%inclusion38 decks138 decks
22%synergy
Darksteel Monolith
23%inclusion42 decks186 decks
22%synergy
The Great Henge
19%inclusion35 decks185 decks
10%synergy
Eldrazi Monument
18%inclusion34 decks186 decks
17%synergy
Sensei's Divining Top
18%inclusion34 decks186 decks
14%synergy
Expedition Map
17%inclusion32 decks186 decks
14%synergy
Skullclamp
16%inclusion29 decks186 decks
4%synergy
Swiftfoot Boots
15%inclusion27 decks186 decks
-13%synergy
Idol of False Gods
14%inclusion24 decks168 decks
14%synergy
Vanquisher's Banner
12%inclusion23 decks186 decks
9%synergy
Strionic Resonator
11%inclusion20 decks186 decks
8%synergy
Ashnod's Altar
8.6%inclusion16 decks186 decks
2%synergy
Ozolith, the Shattered Spire
8.1%inclusion15 decks185 decks
4%synergy
Mirage Mirror
7.5%inclusion14 decks186 decks
6%synergy
Mithril Coat
7.5%inclusion14 decks186 decks
3%synergy
Lithoform Engine
7.0%inclusion13 decks186 decks
6%synergy
Rings of Brighthearth
7.0%inclusion13 decks186 decks
6%synergy
Chimil, the Inner Sun
7.0%inclusion13 decks186 decks
5%synergy
Voltaic Key
6.5%inclusion12 decks186 decks
6%synergy
Vedalken Orrery
6.5%inclusion12 decks186 decks
5%synergy
Maskwood Nexus
6.5%inclusion12 decks186 decks
4%synergy
Idol of Oblivion
6.5%inclusion12 decks186 decks
2%synergy
Moonsilver Key
5.4%inclusion10 decks186 decks
4%synergy
The Ozolith
5.4%inclusion10 decks186 decks
2%synergy
Enchantments
Path of Annihilation
49%inclusion83 decks168 decks
49%synergy
Awakening Zone
46%inclusion86 decks185 decks
44%synergy
Garruk's Uprising
25%inclusion47 decks185 decks
8%synergy
Kindred Discovery
25%inclusion47 decks186 decks
18%synergy
Rhythm of the Wild
25%inclusion46 decks185 decks
3%synergy
Up the Beanstalk
24%inclusion45 decks185 decks
21%synergy
Temur Ascendancy
23%inclusion43 decks185 decks
8%synergy
Spreading Plague
19%inclusion27 decks140 decks
19%synergy
Eldrazi Conscription
16%inclusion30 decks186 decks
15%synergy
Cryptolith Rite
15%inclusion28 decks185 decks
11%synergy
Mana Maze
13%inclusion25 decks186 decks
13%synergy
Leyline of Mutation
13%inclusion13 decks97 decks
9%synergy
Molten Nursery
12%inclusion22 decks186 decks
12%synergy
Reflections of Littjara
10%inclusion18 decks186 decks
5%synergy
Hardened Scales
9.2%inclusion17 decks185 decks
-1%synergy
Sylvan Library
8.6%inclusion16 decks185 decks
0%synergy
Food Chain
7.6%inclusion14 decks185 decks
6%synergy
Parallel Lives
7.6%inclusion14 decks185 decks
1%synergy
Mana Echoes
7.5%inclusion14 decks186 decks
7%synergy
Monstrous Vortex
7.2%inclusion12 decks167 decks
6%synergy
Descendants' Path
6.5%inclusion12 decks185 decks
5%synergy
Annie Joins Up
6.0%inclusion8 decks133 decks
-7%synergy
Doubling Season
5.9%inclusion11 decks185 decks
-4%synergy
Elemental Bond
5.4%inclusion10 decks185 decks
0%synergy
Mystic Remora
5.4%inclusion10 decks186 decks
-11%synergy
Anointed Procession
5.1%inclusion7 decks138 decks
-2%synergy
Planeswalkers
Ugin, Eye of the Storms
50%inclusion39 decks78 decks
49%synergy
Ugin, the Spirit Dragon
28%inclusion53 decks186 decks
27%synergy
Utility Lands
Sanctum of Ugin
62%inclusion115 decks186 decks
61%synergy
Reliquary Tower
47%inclusion87 decks186 decks
17%synergy
Ugin's Labyrinth
47%inclusion80 decks172 decks
46%synergy
Urza's Power Plant
46%inclusion86 decks186 decks
44%synergy
Urza's Tower
46%inclusion86 decks186 decks
44%synergy
Urza's Mine
45%inclusion84 decks186 decks
43%synergy
Tomb of the Spirit Dragon
42%inclusion78 decks186 decks
41%synergy
Cascading Cataracts
34%inclusion64 decks186 decks
33%synergy
Temple of the False God
26%inclusion49 decks186 decks
17%synergy
Bonders' Enclave
22%inclusion41 decks186 decks
20%synergy
Urza's Saga
20%inclusion37 decks186 decks
13%synergy
Yavimaya, Cradle of Growth
20%inclusion37 decks186 decks
11%synergy
Urza's Workshop
15%inclusion28 decks186 decks
14%synergy
Three Tree City
15%inclusion22 decks149 decks
10%synergy
Rogue's Passage
15%inclusion27 decks186 decks
-6%synergy
Thespian's Stage
14%inclusion26 decks186 decks
12%synergy
Spawning Bed
13%inclusion25 decks186 decks
13%synergy
Emergence Zone
13%inclusion24 decks186 decks
10%synergy
Vesuva
11%inclusion20 decks186 decks
9%synergy
Boseiju, Who Endures
10%inclusion19 decks185 decks
-8%synergy
Guildless Commons
10%inclusion19 decks186 decks
9%synergy
Urborg, Tomb of Yawgmoth
10%inclusion18 decks186 decks
1%synergy
Inventors' Fair
9.1%inclusion17 decks186 decks
5%synergy
Bojuka Bog
8.6%inclusion12 decks140 decks
-21%synergy
Otawara, Soaring City
8.1%inclusion15 decks186 decks
-8%synergy
Fountainport
7.5%inclusion11 decks147 decks
6%synergy
Alchemist's Refuge
7.0%inclusion13 decks185 decks
1%synergy
Ruins of Oran-Rief
7.0%inclusion13 decks186 decks
7%synergy
Trenchpost
6.6%inclusion11 decks167 decks
6%synergy
Evendo, Waking Haven
6.5%inclusion3 decks46 decks
2%synergy
Tectonic Edge
6.5%inclusion12 decks186 decks
6%synergy
Glimmerpost
5.9%inclusion11 decks186 decks
6%synergy
Cloudpost
5.9%inclusion11 decks186 decks
6%synergy
Command Beacon
5.9%inclusion11 decks186 decks
1%synergy
Deserted Temple
5.4%inclusion10 decks186 decks
4%synergy
Homeward Path
5.4%inclusion10 decks186 decks
4%synergy
Mana Artifacts
Sol Ring
98%inclusion183 decks186 decks
15%synergy
Arcane Signet
75%inclusion140 decks186 decks
3%synergy
Chromatic Lantern
46%inclusion86 decks186 decks
38%synergy
Thran Dynamo
42%inclusion78 decks186 decks
37%synergy
Basalt Monolith
39%inclusion73 decks186 decks
37%synergy
Talisman of Curiosity
37%inclusion68 decks185 decks
24%synergy
Talisman of Impulse
30%inclusion55 decks185 decks
19%synergy
Talisman of Resilience
23%inclusion32 decks139 decks
10%synergy
Talisman of Dominance
19%inclusion27 decks140 decks
-13%synergy
Talisman of Creativity
18%inclusion34 decks186 decks
-10%synergy
Everflowing Chalice
17%inclusion31 decks186 decks
12%synergy
Chromatic Orrery
16%inclusion30 decks186 decks
15%synergy
Fellwar Stone
16%inclusion29 decks186 decks
-5%synergy
Thought Vessel
15%inclusion28 decks186 decks
-2%synergy
Hedron Archive
12%inclusion23 decks186 decks
10%synergy
The Eternity Elevator
11%inclusion5 decks47 decks
9%synergy
Talisman of Unity
9.4%inclusion13 decks138 decks
2%synergy
Mana Crypt
8.1%inclusion15 decks186 decks
6%synergy
Timeless Lotus
7.2%inclusion10 decks138 decks
-4%synergy
Talisman of Hierarchy
6.5%inclusion9 decks138 decks
-20%synergy
Worn Powerstone
6.5%inclusion12 decks186 decks
4%synergy
Dreamstone Hedron
5.9%inclusion11 decks186 decks
5%synergy
Talisman of Indulgence
5.7%inclusion8 decks140 decks
-22%synergy
Commander's Sphere
5.4%inclusion10 decks186 decks
-7%synergy
Mind Stone
5.4%inclusion10 decks186 decks
-9%synergy
Lands
Command Tower
91%inclusion169 decks186 decks
17%synergy
Yavimaya Coast
58%inclusion108 decks185 decks
31%synergy
Shivan Reef
53%inclusion99 decks186 decks
24%synergy
Karplusan Forest
53%inclusion98 decks185 decks
33%synergy
Llanowar Wastes
52%inclusion72 decks139 decks
25%synergy
Underground River
49%inclusion68 decks140 decks
26%synergy
Exotic Orchard
47%inclusion88 decks186 decks
11%synergy
Brushland
46%inclusion63 decks138 decks
26%synergy
Adarkar Wastes
43%inclusion60 decks138 decks
20%synergy
Corrupted Crossroads
43%inclusion80 decks186 decks
43%synergy
Cavern of Souls
43%inclusion80 decks186 decks
36%synergy
Unclaimed Territory
42%inclusion78 decks186 decks
38%synergy
Secluded Courtyard
41%inclusion76 decks186 decks
36%synergy
Sulfurous Springs
41%inclusion57 decks140 decks
17%synergy
Battlefield Forge
38%inclusion52 decks138 decks
9%synergy
Path of Ancestry
38%inclusion70 decks186 decks
15%synergy
The World Tree
35%inclusion48 decks138 decks
7%synergy
Caves of Koilos
34%inclusion47 decks138 decks
5%synergy
Breeding Pool
29%inclusion53 decks185 decks
-13%synergy
Ketria Triome
28%inclusion51 decks185 decks
-3%synergy
Wooded Foothills
27%inclusion50 decks186 decks
16%synergy
Misty Rainforest
27%inclusion50 decks186 decks
15%synergy
Urza's Cave
27%inclusion46 decks172 decks
24%synergy
Stomping Ground
25%inclusion47 decks185 decks
-16%synergy
Reflecting Pool
23%inclusion42 decks186 decks
17%synergy
Steam Vents
22%inclusion40 decks186 decks
-17%synergy
Mana Confluence
20%inclusion38 decks186 decks
13%synergy
City of Brass
20%inclusion38 decks186 decks
13%synergy
Scalding Tarn
20%inclusion38 decks186 decks
10%synergy
Opal Palace
18%inclusion33 decks186 decks
16%synergy
Twisted Landscape
15%inclusion19 decks125 decks
5%synergy
Planar Nexus
15%inclusion25 decks172 decks
14%synergy
Tranquil Landscape
15%inclusion18 decks124 decks
7%synergy
Zagoth Triome
14%inclusion20 decks139 decks
-13%synergy
Bountiful Landscape
14%inclusion23 decks166 decks
4%synergy
Tropical Island
14%inclusion25 decks185 decks
-1%synergy
Spire Garden
14%inclusion25 decks185 decks
-8%synergy
Windswept Heath
13%inclusion25 decks186 decks
2%synergy
Taiga
13%inclusion24 decks185 decks
0%synergy
Frontier Bivouac
13%inclusion24 decks185 decks
-16%synergy
Overgrown Tomb
12%inclusion17 decks139 decks
-29%synergy
Bloodstained Mire
12%inclusion22 decks186 decks
1%synergy
Polluted Delta
12%inclusion22 decks186 decks
0%synergy
Hallowed Fountain
12%inclusion16 decks138 decks
-28%synergy
Bayou
12%inclusion16 decks139 decks
-2%synergy
Rejuvenating Springs
11%inclusion21 decks185 decks
-15%synergy
Volcanic Island
11%inclusion21 decks186 decks
-3%synergy
Temple Garden
11%inclusion15 decks138 decks
-28%synergy
Verdant Catacombs
11%inclusion20 decks186 decks
0%synergy
Flooded Strand
11%inclusion20 decks186 decks
-1%synergy