Miirym, Sentinel Wyrm + Glasspool Mimic + Changeling Berserker
Miirym, Sentinel Wyrm
Glasspool Mimic
Changeling Berserker
Requires
Miirym, Sentinel Wyrm must be on the battlefield.
Glasspool Mimic // Glasspool Shore must be on the battlefield.
Changeling Berserker must be in hand.
Mana needed: 
Steps
- Cast Changeling Berserker by paying .
- Changeling Berserker enters the battlefield, triggering its champion ability and Miirym.
- Resolve the Changeling Berserker trigger, championing Glasspool Mimic.
- Resolve the Miirym trigger, creating a copy of Changeling Berserker.
- The token Changeling Berserker enters the battlefield, championing the nontoken Changeling Berserker.
- The nontoken Changeling Berserker leaves the battlefield, returning Glasspool Mimic from exile to the battlefield as a copy of the Changeling Berserker token.
- Glasspool Mimic enters the battlefield, triggering its champion ability and Miirym.
- Resolve the Glasspool Mimic trigger, championing the token Changeling Berserker.
- The token Changeling Berserker leaves the battlefield, returning the nontoken Changeling Berserker from exile to the battlefield.
- Repeat from step 2.
- Resolve all remaining Miirym triggers, creating infinite nonlegendary copies of Glasspool Mimic that can copy any creatures you control.
Results
Infinite copies of creatures you control. Infinite creature tokens. Infinite ETB. Infinite LTB.
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0.24% of 20840 decks
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Sneak Attack
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Rhythm of the Wild
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Elemental Bond
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Doubling Season
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+11% synergy
Reflections of Littjara
19% of 59 decks
+13% synergy
Primal Vigor
17% of 59 decks
+14% synergy
Wild Growth
15% of 59 decks
+4% synergy
Sylvan Library
15% of 59 decks
+3% synergy
Mystic Remora
15% of 59 decks
-3% synergy
Rhystic Study
15% of 59 decks
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Life Finds a Way
15% of 27 decks
+14% synergy
Mana Reflection
14% of 59 decks
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Bower Passage
12% of 59 decks
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Exploration
12% of 59 decks
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10% of 59 decks
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Lurking Predators
10% of 59 decks
+9% synergy
Rooftop Storm
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Molten Echoes
10% of 59 decks
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Aggravated Assault
10% of 59 decks
+7% synergy
Up the Beanstalk
10% of 31 decks
+5% synergy
Descendants' Path
8% of 59 decks
+7% synergy
Mechanized Production
8% of 59 decks
+6% synergy
Curiosity
8% of 59 decks
+5% synergy
Fires of Yavimaya
8% of 59 decks
+4% synergy
Descendants' Fury
8% of 36 decks
+7% synergy
Shadow in the Warp
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+4% synergy
Arcane Adaptation
7% of 59 decks
+6% synergy
Fable of the Mirror-Breaker
7% of 59 decks
+4% synergy
Colossal Majesty
7% of 59 decks
+3% synergy
Reconnaissance Mission
7% of 59 decks
+2% synergy
Frontier Siege
5% of 59 decks
+4% synergy
Nature's Will
5% of 59 decks
+4% synergy
Necroduality
5% of 59 decks
+4% synergy
Keen Sense
5% of 59 decks
+4% synergy
Food Chain
5% of 59 decks
+3% synergy
Survival of the Fittest
5% of 59 decks
+3% synergy
Defense of the Heart
5% of 59 decks
+3% synergy
Utopia Sprawl
5% of 59 decks
-3% synergy
Battles
Invasion of Ikoria
7% of 46 decks
+1% synergy
Planeswalkers
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19% of 59 decks
+16% synergy
Wrenn and Realmbreaker
15% of 46 decks
+13% synergy
Sarkhan the Masterless
7% of 59 decks
+6% synergy
Kiora, Behemoth Beckoner
7% of 59 decks
+3% synergy
Utility Lands
Arena of Glory
41% of 17 decks
+32% synergy
Reliquary Tower
32% of 59 decks
+3% synergy
Mosswort Bridge
25% of 59 decks
+15% synergy
Yavimaya, Cradle of Growth
22% of 59 decks
+13% synergy
Otawara, Soaring City
22% of 59 decks
+5% synergy
Command Beacon
17% of 59 decks
+12% synergy
Boseiju, Who Endures
15% of 59 decks
-4% synergy
Crucible of the Spirit Dragon
10% of 59 decks
+10% synergy
Mutavault
10% of 59 decks
+9% synergy
Spinerock Knoll
10% of 59 decks
+6% synergy
Ancient Tomb
10% of 59 decks
-0% synergy
Temple of the False God
8% of 59 decks
-1% synergy
Swarmyard
7% of 59 decks
+6% synergy
Kessig Wolf Run
7% of 59 decks
-9% synergy
Rogue's Passage
7% of 59 decks
-12% synergy
Mirrorpool
5% of 59 decks
+4% synergy
Cascading Cataracts
5% of 59 decks
+4% synergy
Castle Garenbrig
5% of 59 decks
-0% synergy
Urza's Saga
5% of 59 decks
-2% synergy
Mana Artifacts
Sol Ring
95% of 59 decks
+10% synergy
Arcane Signet
85% of 59 decks
+13% synergy
Dragon's Hoard
49% of 59 decks
+48% synergy
Chromatic Lantern
29% of 59 decks
+19% synergy
Machine God's Effigy
26% of 50 decks
+25% synergy
Jade Orb of Dragonkind
24% of 59 decks
+23% synergy
Fellwar Stone
24% of 59 decks
+3% synergy
Orb of Dragonkind
22% of 59 decks
+21% synergy
Carnelian Orb of Dragonkind
20% of 59 decks
+18% synergy
Talisman of Curiosity
19% of 59 decks
+6% synergy
Izzet Signet
19% of 59 decks
-10% synergy
Talisman of Creativity
19% of 59 decks
-10% synergy
Simic Signet
15% of 59 decks
+1% synergy
Mana Vault
12% of 59 decks
+5% synergy
Talisman of Impulse
12% of 59 decks
+3% synergy
Gruul Signet
12% of 59 decks
-0% synergy
Mox Diamond
8% of 59 decks
+4% synergy
Commander's Sphere
8% of 59 decks
-7% synergy
Lapis Orb of Dragonkind
7% of 59 decks
+6% synergy
Mana Crypt
7% of 59 decks
-2% synergy
Jeweled Lotus
5% of 59 decks
-1% synergy
Chrome Mox
5% of 59 decks
-1% synergy
Lands
Command Tower
97% of 59 decks
+23% synergy
The World Tree
90% of 10 decks
+56% synergy
Exotic Orchard
68% of 59 decks
+32% synergy
Path of Ancestry
63% of 59 decks
+42% synergy
Haven of the Spirit Dragon
59% of 59 decks
+58% synergy
Cinder Glade
58% of 59 decks
+19% synergy
Frontier Bivouac
54% of 59 decks
+27% synergy
Undergrowth Stadium
50% of 10 decks
+24% synergy
Watery Grave
50% of 10 decks
+9% synergy
Stomping Ground
47% of 59 decks
+6% synergy
Steam Vents
46% of 59 decks
+7% synergy
Breeding Pool
46% of 59 decks
+5% synergy
Rejuvenating Springs
41% of 59 decks
+12% synergy
Ketria Triome
41% of 59 decks
+8% synergy
Murmuring Bosk
40% of 10 decks
+32% synergy
Sacred Foundry
40% of 10 decks
+4% synergy
Blood Crypt
40% of 10 decks
+1% synergy
Godless Shrine
40% of 10 decks
-1% synergy
Overgrown Tomb
40% of 10 decks
-3% synergy
Rockfall Vale
37% of 59 decks
+15% synergy
Training Center
37% of 59 decks
+10% synergy
Misty Rainforest
36% of 59 decks
+24% synergy
Wooded Foothills
34% of 59 decks
+24% synergy
Scalding Tarn
34% of 59 decks
+23% synergy
Spire Garden
34% of 59 decks
+10% synergy
Yavimaya Coast
34% of 59 decks
+7% synergy
Hinterland Harbor
34% of 59 decks
+7% synergy
Sulfur Falls
34% of 59 decks
+4% synergy
Shivan Reef
32% of 59 decks
+5% synergy
Crystal Quarry
30% of 10 decks
+26% synergy
Bountiful Promenade
30% of 10 decks
+6% synergy
Spectator Seating
30% of 10 decks
+5% synergy
Vault of Champions
30% of 10 decks
+4% synergy
Spara's Headquarters
30% of 10 decks
-2% synergy
Temple Garden
30% of 10 decks
-11% synergy
Reflecting Pool
27% of 59 decks
+22% synergy
Cavern of Souls
27% of 59 decks
+20% synergy
Evolving Wilds
25% of 59 decks
+4% synergy
Rootbound Crag
25% of 59 decks
+2% synergy
Temple of the Dragon Queen
24% of 59 decks
+23% synergy
Bountiful Landscape
24% of 17 decks
+7% synergy
Unclaimed Territory
22% of 59 decks
+17% synergy
Karplusan Forest
22% of 59 decks
+5% synergy
Dreamroot Cascade
22% of 59 decks
+3% synergy
Demolition Field
20% of 50 decks
+17% synergy
Secluded Courtyard
19% of 59 decks
+14% synergy
Stormcarved Coast
19% of 59 decks
+1% synergy
Terramorphic Expanse
17% of 59 decks
+1% synergy
Gruul Turf
17% of 59 decks
+1% synergy
Arid Mesa
15% of 59 decks
+5% synergy