Expansion // Explosion
Twincast

   Prerequisites

What do I need to start this combo?
Expansion // Explosion and Twincast in hand.
You have a way to cast an additional instant or sorcery, or an opponent is casting one.
urur, plus enough mana to cast the additional spell if needed available

   Steps

How does this combo work?
1
Cast any other instant and/or sorcery spell, or wait for an opponent to cast one.
2
Holding priority, cast Expansion by paying urur, copying the next instant or sorcery spell you cast with mana value four or less.
3
Cast Twincast by paying , targeting the instant or sorcery spell cast in step 1.
4
The delayed trigger from Expansion triggers, copying Twincast, with the copy targeting the original Twincast.
5
Resolve the copy of Twincast, copying Twincast, with the copy targeting the original Twincast.
6
Repeat step 5.

   Results

What do I get from this combo?
Infinite magecraft triggers
Prismari, the Inspiration
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Sanar, Unfinished Genius
0.8%inclusion8 decks942 decks
Zaffai and the Tempests
0.8%inclusion4 decks476 decks
Doctor Doom, King of Latveria
0.0%inclusion1 decks2.41K decks
Bruce Banner
0.0%inclusion1 decks2.87K decks
Top Commanders
Kalamax, the Stormsire
17%inclusion1.44K decks8.58K decks
Veyran, Voice of Duality
1.6%inclusion178 decks10.9K decks
Kess, Dissident Mage
1.8%inclusion148 decks8.29K decks
Alania, Divergent Storm
1.0%inclusion118 decks11.5K decks
Riku of Two Reflections
2.1%inclusion110 decks5.26K decks
Parnesse, the Subtle Brush
7.1%inclusion99 decks1.40K decks
Niv-Mizzet, Parun
0.6%inclusion98 decks16K decks
Fire Lord Azula
0.3%inclusion90 decks32.4K decks
Vivi Ornitier
0.2%inclusion76 decks34.8K decks
Melek, Izzet Paragon
3.2%inclusion52 decks1.63K decks
Mizzix of the Izmagnus
0.9%inclusion49 decks5.76K decks
Galazeth Prismari
1.0%inclusion45 decks4.55K decks
Shiko and Narset, Unified
0.5%inclusion44 decks8.76K decks
Stella Lee, Wild Card
0.3%inclusion39 decks13.2K decks
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10%inclusion39 decks396 decks
Anhelo, the Painter
0.6%inclusion39 decks6.26K decks
Lutri, the Spellchaser
6.6%inclusion38 decks576 decks
Storm, Force of Nature
0.2%inclusion34 decks15K decks
Codie, Vociferous Codex
0.4%inclusion30 decks8.42K decks
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1.5%inclusion29 decks1.95K decks
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1.9%inclusion28 decks1.49K decks
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0.2%inclusion27 decks13.6K decks
Krark, the Thumbless // Sakashima of a Thousand Faces
0.4%inclusion25 decks5.66K decks
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0.4%inclusion24 decks6.13K decks
New Cards
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25%inclusion178 decks713 decks
Flashback
13%inclusion95 decks704 decks
Prismari, the Inspiration
10%inclusion74 decks729 decks
Erode
7.9%inclusion3 decks38 decks
Traumatic Critique
7.6%inclusion54 decks713 decks
High Synergy Cards
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Wilderness Reclamation
66%inclusion1.15K decks1.74K decks
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Archmage Emeritus
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Harrow
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Opt
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22%inclusion780 decks3.56K decks
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21%inclusion115 decks538 decks
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21%inclusion357 decks1.74K decks
Underworld Breach
15%inclusion520 decks3.56K decks
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7.6%inclusion41 decks538 decks
Coalition Victory
6.6%inclusion4 decks61 decks
Creatures
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43%inclusion1.52K decks3.56K decks
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42%inclusion1.50K decks3.56K decks
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42%inclusion1.48K decks3.56K decks
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41%inclusion711 decks1.74K decks
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32%inclusion1.14K decks3.56K decks
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30%inclusion529 decks1.74K decks
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27%inclusion957 decks3.53K decks
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26%inclusion933 decks3.56K decks
Monastery Mentor
24%inclusion50 decks206 decks
Wavebreak Hippocamp
23%inclusion823 decks3.56K decks
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22%inclusion120 decks538 decks
Young Pyromancer
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Archmage of Runes
18%inclusion577 decks3.18K decks
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17%inclusion92 decks538 decks
Niv-Mizzet, Parun
16%inclusion584 decks3.56K decks
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12%inclusion21 decks169 decks
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Pinnacle Monk
12%inclusion438 decks3.56K decks
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12%inclusion434 decks3.56K decks
Kykar, Wind's Fury
12%inclusion24 decks206 decks
Bloom Tender
11%inclusion198 decks1.74K decks
Birgi, God of Storytelling
11%inclusion397 decks3.56K decks
Goblin Anarchomancer
10%inclusion179 decks1.74K decks
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7.3%inclusion15 decks206 decks
Deekah, Fractal Theorist
7.2%inclusion257 decks3.56K decks
Instants
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44%inclusion762 decks1.74K decks
Entish Restoration
43%inclusion748 decks1.74K decks
Big Score
41%inclusion1.46K decks3.56K decks
Snap
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37%inclusion1.31K decks3.56K decks
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35%inclusion1.25K decks3.56K decks
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32%inclusion65 decks206 decks
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28%inclusion1.01K decks3.56K decks
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Dig Through Time
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Pongify
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26%inclusion454 decks1.74K decks
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Seething Song
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24%inclusion419 decks1.74K decks
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23%inclusion813 decks3.56K decks
Consider
22%inclusion798 decks3.56K decks
Swan Song
22%inclusion766 decks3.56K decks
Electrodominance
21%inclusion741 decks3.56K decks
Terminate
20%inclusion105 decks538 decks
Fact or Fiction
19%inclusion681 decks3.56K decks
Demand Answers
19%inclusion675 decks3.56K decks
Dovin's Veto
19%inclusion39 decks206 decks
Eureka Moment
19%inclusion324 decks1.74K decks
Natural Connection
18%inclusion318 decks1.74K decks
Reality Shift
18%inclusion642 decks3.56K decks
Withering Torment
18%inclusion93 decks516 decks
Joint Exploration
18%inclusion312 decks1.74K decks
Mana Drain
18%inclusion636 decks3.56K decks
Fork
18%inclusion634 decks3.56K decks
Rapid Hybridization
18%inclusion633 decks3.56K decks
Noxious Revival
17%inclusion301 decks1.74K decks
Bedevil
17%inclusion93 decks538 decks
Boros Charm
17%inclusion35 decks206 decks
Impulse
17%inclusion601 decks3.56K decks
Waterlogged Teachings
17%inclusion90 decks538 decks
Generous Gift
17%inclusion34 decks206 decks
Roiling Regrowth
16%inclusion284 decks1.74K decks
Flare of Duplication
16%inclusion575 decks3.56K decks
Fury Storm
16%inclusion570 decks3.56K decks
Nexus of Fate
16%inclusion563 decks3.56K decks
Sorceries
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40%inclusion692 decks1.74K decks
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35%inclusion1.26K decks3.56K decks
Rampant Growth
35%inclusion604 decks1.74K decks
Three Visits
31%inclusion533 decks1.74K decks
Chandra's Ignition
31%inclusion1.09K decks3.56K decks
Cultivate
30%inclusion518 decks1.74K decks
Ponder
29%inclusion1.02K decks3.56K decks
Solve the Equation
27%inclusion944 decks3.56K decks
Preordain
26%inclusion913 decks3.56K decks
Mana Geyser
25%inclusion899 decks3.56K decks
Mizzix's Mastery
24%inclusion854 decks3.56K decks
Feed the Swarm
23%inclusion126 decks538 decks
Faithless Looting
19%inclusion679 decks3.56K decks
Toxic Deluge
19%inclusion100 decks538 decks
Expressive Iteration
18%inclusion632 decks3.56K decks
Kodama's Reach
17%inclusion293 decks1.74K decks
Exsanguinate
16%inclusion88 decks538 decks
Villainous Wealth
16%inclusion12 decks74 decks
Windfall
16%inclusion573 decks3.56K decks
Time Wipe
16%inclusion33 decks206 decks
Torment of Hailfire
15%inclusion82 decks538 decks
Grapeshot
15%inclusion533 decks3.56K decks
Night's Whisper
14%inclusion74 decks538 decks
Bonus Round
14%inclusion489 decks3.56K decks
Sign in Blood
14%inclusion73 decks538 decks
Vandalblast
13%inclusion467 decks3.56K decks
Gitaxian Probe
13%inclusion457 decks3.56K decks
Crackle with Power
12%inclusion431 decks3.56K decks
Past in Flames
12%inclusion430 decks3.56K decks
Conflux
11%inclusion7 decks61 decks
Serum Visions
11%inclusion401 decks3.56K decks
Emergent Ultimatum
11%inclusion8 decks74 decks
Dismantling Wave
11%inclusion22 decks206 decks
Reanimate
10%inclusion56 decks538 decks
Chain of Smog
10%inclusion53 decks538 decks
Death Begets Life
10%inclusion6 decks61 decks
Approach of the Second Sun
10%inclusion20 decks206 decks
Merchant Scroll
9.2%inclusion329 decks3.56K decks
Gamble
9.2%inclusion329 decks3.56K decks
Vanquish the Horde
8.7%inclusion18 decks206 decks
Treasure Cruise
8.5%inclusion301 decks3.56K decks
Tendrils of Agony
8.4%inclusion45 decks538 decks
Sevinne's Reclamation
8.3%inclusion17 decks206 decks
Riveteers Confluence
8.1%inclusion6 decks74 decks
Ruinous Ultimatum
7.8%inclusion5 decks64 decks
Twinflame
7.7%inclusion274 decks3.56K decks
Road // Ruin
7.5%inclusion131 decks1.74K decks
Brass's Bounty
7.5%inclusion267 decks3.56K decks
Rite of Replication
7.3%inclusion260 decks3.56K decks
Farewell
7.3%inclusion15 decks206 decks
Utility Artifacts
Primal Amulet
29%inclusion1.05K decks3.56K decks
Swiftfoot Boots
26%inclusion920 decks3.56K decks
Lightning Greaves
26%inclusion913 decks3.56K decks
Isochron Scepter
21%inclusion733 decks3.56K decks
Mindsplice Apparatus
6.2%inclusion220 decks3.56K decks
Ruby Medallion
5.8%inclusion208 decks3.56K decks
Aetherflux Reservoir
5.7%inclusion202 decks3.56K decks
Sapphire Medallion
5.3%inclusion188 decks3.56K decks
The One Ring
5.2%inclusion186 decks3.56K decks
Enchantments
Thousand-Year Storm
43%inclusion1.53K decks3.56K decks
Whirlwind of Thought
41%inclusion85 decks206 decks
Double Vision
30%inclusion1.05K decks3.56K decks
Rhystic Study
24%inclusion845 decks3.56K decks
Swarm Intelligence
23%inclusion801 decks3.56K decks
Jeskai Ascendancy
20%inclusion41 decks206 decks
Mystic Remora
18%inclusion648 decks3.56K decks
Aligned Heart
16%inclusion28 decks170 decks
Smothering Tithe
16%inclusion32 decks206 decks
Arcane Bombardment
15%inclusion543 decks3.56K decks
Leyline of the Guildpact
13%inclusion8 decks61 decks
Ghostly Prison
13%inclusion27 decks206 decks
Mirari's Wake
13%inclusion9 decks72 decks
Leyline Immersion
11%inclusion184 decks1.74K decks
Fiery Inscription
8.5%inclusion302 decks3.56K decks
Sylvan Library
8.4%inclusion147 decks1.74K decks
Curiosity
7.9%inclusion281 decks3.56K decks
Wild Growth
6.8%inclusion119 decks1.74K decks
Cryptolith Rite
6.8%inclusion118 decks1.74K decks
Propaganda
6.5%inclusion232 decks3.56K decks
Sorcerer Class
6.3%inclusion225 decks3.56K decks
Dual Casting
6.0%inclusion212 decks3.56K decks
Jace's Sanctum
5.9%inclusion210 decks3.56K decks
Shark Typhoon
5.3%inclusion189 decks3.56K decks
Tempest Technique
5.3%inclusion9 decks170 decks
Planeswalkers
Professor Onyx
36%inclusion194 decks538 decks
Ral, Crackling Wit
10%inclusion357 decks3.53K decks
Ashiok, Dream Render
8.4%inclusion45 decks538 decks
Chandra, Hope's Beacon
6.6%inclusion235 decks3.56K decks
Teferi, Time Raveler
5.3%inclusion11 decks206 decks
Utility Lands
Reliquary Tower
48%inclusion1.72K decks3.56K decks
Kessig Wolf Run
37%inclusion638 decks1.74K decks
Bojuka Bog
28%inclusion153 decks538 decks
Mystic Sanctuary
28%inclusion1.01K decks3.56K decks
Boseiju, Who Endures
20%inclusion348 decks1.74K decks
Otawara, Soaring City
15%inclusion550 decks3.56K decks
Rogue's Passage
15%inclusion518 decks3.56K decks
Mistrise Village
14%inclusion371 decks2.65K decks
Desolate Lighthouse
7.3%inclusion261 decks3.56K decks
Mosswort Bridge
7.2%inclusion126 decks1.74K decks
Ancient Tomb
7.1%inclusion254 decks3.56K decks
Scavenger Grounds
7.0%inclusion250 decks3.56K decks
Halimar Depths
5.9%inclusion210 decks3.56K decks
Alchemist's Refuge
5.7%inclusion99 decks1.74K decks
Lindblum, Industrial Regency
5.6%inclusion130 decks2.34K decks
Yavimaya, Cradle of Growth
5.3%inclusion190 decks3.56K decks
Temple of the False God
5.0%inclusion179 decks3.56K decks
Mana Artifacts
Sol Ring
85%inclusion3.03K decks3.56K decks
Arcane Signet
80%inclusion2.86K decks3.56K decks
Talisman of Dominance
49%inclusion262 decks538 decks
Talisman of Indulgence
46%inclusion250 decks538 decks
Dimir Signet
44%inclusion235 decks538 decks
Talisman of Creativity
42%inclusion1.49K decks3.56K decks
Rakdos Signet
41%inclusion223 decks538 decks
Izzet Signet
37%inclusion1.32K decks3.56K decks
Talisman of Progress
35%inclusion72 decks206 decks
Azorius Signet
33%inclusion69 decks206 decks
Springleaf Drum
31%inclusion1.10K decks3.56K decks
Boros Signet
29%inclusion59 decks206 decks
Relic of Legends
25%inclusion875 decks3.56K decks
Fellwar Stone
23%inclusion826 decks3.56K decks
Talisman of Conviction
23%inclusion47 decks206 decks
Thought Vessel
20%inclusion729 decks3.56K decks
Talisman of Curiosity
20%inclusion344 decks1.74K decks
Talisman of Impulse
12%inclusion204 decks1.74K decks
Mind Stone
11%inclusion406 decks3.56K decks
Relic of Sauron
11%inclusion60 decks538 decks
Simic Signet
11%inclusion185 decks1.74K decks
Pyromancer's Goggles
8.5%inclusion303 decks3.56K decks
Bender's Waterskin
8.1%inclusion159 decks1.97K decks
Lotus Petal
8.0%inclusion286 decks3.56K decks
Commander's Sphere
7.9%inclusion282 decks3.56K decks
Chromatic Lantern
7.6%inclusion271 decks3.56K decks
Gruul Signet
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Chrome Mox
6.5%inclusion233 decks3.56K decks
Paradise Mantle
6.3%inclusion224 decks3.56K decks
Orzhov Signet
6.3%inclusion4 decks64 decks
Lands
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Sulfur Falls
60%inclusion2.14K decks3.56K decks
Steam Vents
60%inclusion2.13K decks3.56K decks
Stomping Ground
59%inclusion1.02K decks1.74K decks
Breeding Pool
59%inclusion1.02K decks1.74K decks
Frontier Bivouac
55%inclusion963 decks1.74K decks
Exotic Orchard
54%inclusion1.93K decks3.56K decks
Ketria Triome
54%inclusion935 decks1.74K decks
Shivan Reef
51%inclusion1.83K decks3.56K decks
Watery Grave
50%inclusion269 decks538 decks
Blood Crypt
49%inclusion262 decks538 decks
Yavimaya Coast
48%inclusion843 decks1.74K decks
Mystic Monastery
46%inclusion94 decks206 decks
Dragonskull Summit
45%inclusion240 decks538 decks
Cinder Glade
45%inclusion776 decks1.74K decks
Training Center
45%inclusion1.58K decks3.56K decks
Hinterland Harbor
44%inclusion773 decks1.74K decks
Rejuvenating Springs
43%inclusion753 decks1.74K decks
Drowned Catacomb
41%inclusion223 decks538 decks
Xander's Lounge
41%inclusion222 decks538 decks
Crumbling Necropolis
41%inclusion220 decks538 decks
Glacial Fortress
40%inclusion82 decks206 decks
Sacred Foundry
39%inclusion80 decks206 decks
Clifftop Retreat
38%inclusion78 decks206 decks
Hallowed Fountain
38%inclusion78 decks206 decks
Scalding Tarn
37%inclusion1.32K decks3.56K decks
Rootbound Crag
34%inclusion584 decks1.74K decks
Stormcarved Coast
33%inclusion1.19K decks3.56K decks
Raugrin Triome
32%inclusion66 decks206 decks
Spire Garden
31%inclusion547 decks1.74K decks
Luxury Suite
31%inclusion169 decks538 decks
Morphic Pool
31%inclusion168 decks538 decks
Sulfurous Springs
31%inclusion166 decks538 decks
Temple Garden
31%inclusion22 decks72 decks
Cascade Bluffs
31%inclusion1.09K decks3.56K decks
Underground River
30%inclusion163 decks538 decks
Battlefield Forge
29%inclusion60 decks206 decks
Prairie Stream
29%inclusion60 decks206 decks
Izzet Boilerworks
29%inclusion1.03K decks3.56K decks
Adarkar Wastes
29%inclusion59 decks206 decks
Zagoth Triome
28%inclusion21 decks74 decks
Shipwreck Marsh
28%inclusion149 decks538 decks
Holdout Settlement
27%inclusion968 decks3.56K decks
Survivors' Encampment
27%inclusion966 decks3.56K decks
Overgrown Tomb
26%inclusion19 decks74 decks
Haunted Ridge
25%inclusion136 decks538 decks
Jetmir's Garden
25%inclusion18 decks72 decks
Dreamroot Cascade
24%inclusion425 decks1.74K decks
Misty Rainforest
24%inclusion850 decks3.56K decks
Wooded Foothills
24%inclusion839 decks3.56K decks