Astral Dragon + Necromancy + Glasspool Mimic
Astral Dragon
Necromancy
Glasspool Mimic
Requires
Astral Dragon must be in the graveyard.
Necromancy must be in hand.
Glasspool Mimic // Glasspool Shore must be in the graveyard.
Mana needed: 
Steps
- Cast Necromancy by paying .
- When Necromancy enters the battlefield, it triggers, returning Astral Dragon from your graveyard to the battlefield, and then attaching Necromancy to Astral Dragon.
- When Astral Dragon enters the battlefield, it triggers, creating two token copies of Necromancy that are 3/3 Dragon creatures in addition to their other types.
- When the Necromancy tokens enter the battlefield, they trigger, with at least one trigger targeting Glasspool Mimic.
- Resolve the first Necromancy trigger, returning Glasspool Mimic from your graveyard to the battlefield as a copy of Astral Dragon, and not attaching Necromancy to Glasspool Mimic due to Necromancy being a creature.
- The Necromancy Aura creature token is put into your graveyard as a state-based action due to being an Aura that is unattached.
- The Necromancy token leaves-the-battlefield ability triggers, as well as Glasspool Mimic's enters-the-battlefield ability.
- Resolve the Necromancy trigger, causing you to sacrifce Glasspool Mimic.
- Resolve the Glasspool Mimic trigger, creating two token copies of Necromancy that are 3/3 Dragon creatures in addition to their other types.
- Repeat from step 4.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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Sword of Once and Future
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Swiftfoot Boots
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Altar of Dementia
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Wayfarer's Bauble
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Conjurer's Closet
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Palantír of Orthanc
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Matzalantli, the Great Door
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Mesmeric Orb
5% of 244 decks
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Enchantments
Spelunking
60% of 5 decks
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Guardian Project
45% of 11 decks
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Case of the Shifting Visage
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Dance of the Dead
38% of 244 decks
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Dragon Tempest
38% of 8 decks
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Search for Azcanta
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Growing Rites of Itlimoc
27% of 11 decks
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Kenrith's Transformation
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Rhystic Study
24% of 244 decks
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Smothering Tithe
24% of 25 decks
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Gossip's Talent
22% of 54 decks
+20% synergy
Ripples of Undeath
22% of 73 decks
+15% synergy
Diabolic Servitude
17% of 244 decks
+17% synergy
Mystic Remora
16% of 244 decks
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Teleportation Circle
16% of 25 decks
+12% synergy
Enhanced Surveillance
15% of 244 decks
+15% synergy
Phyrexian Arena
15% of 244 decks
+0% synergy
Parallax Wave
12% of 25 decks
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Touch the Spirit Realm
12% of 25 decks
+10% synergy
Black Market Connections
8% of 244 decks
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Copy Land
8% of 65 decks
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Virtue of Knowledge
6% of 188 decks
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Teferi's Ageless Insight
6% of 244 decks
+1% synergy
Virtue of Persistence
5% of 187 decks
+2% synergy
Battles
Invasion of Zendikar
43% of 7 decks
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Invasion of Amonkhet
7% of 202 decks
+5% synergy
Planeswalkers
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16% of 19 decks
+12% synergy
Teferi, Master of Time
6% of 244 decks
+4% synergy
Utility Lands
Bojuka Bog
63% of 244 decks
+33% synergy
Desolate Lighthouse
38% of 8 decks
+33% synergy
Takenuma, Abandoned Mire
32% of 244 decks
+21% synergy
Otawara, Soaring City
30% of 244 decks
+13% synergy
Hall of Heliod's Generosity
28% of 25 decks
+21% synergy
Mystic Sanctuary
28% of 244 decks
+16% synergy
Tocasia's Dig Site
27% of 233 decks
+27% synergy
Urborg, Tomb of Yawgmoth
25% of 244 decks
+15% synergy
Tomb Fortress
24% of 238 decks
+23% synergy
Nesting Grounds
22% of 244 decks
+21% synergy
Rogue's Passage
21% of 244 decks
+2% synergy
Reliquary Tower
21% of 244 decks
-8% synergy
Phyrexian Tower
20% of 244 decks
+12% synergy
High Market
19% of 244 decks
+16% synergy
Drownyard Temple
18% of 244 decks
+17% synergy
Minamo, School at Water's Edge
18% of 244 decks
+13% synergy
Spymaster's Vault
16% of 82 decks
+12% synergy
Geier Reach Sanitarium
16% of 244 decks
+12% synergy
Ancient Tomb
14% of 244 decks
+3% synergy
Guildless Commons
12% of 244 decks
+10% synergy
Restless Reef
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+8% synergy
Cephalid Coliseum
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+8% synergy
Cabal Coffers
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-4% synergy
Temple of the False God
6% of 244 decks
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Castle Locthwain
6% of 244 decks
+0% synergy
Field of the Dead
5% of 244 decks
+2% synergy
Mana Artifacts
Arcane Signet
91% of 244 decks
+19% synergy
Sol Ring
88% of 244 decks
+3% synergy
Talisman of Dominance
76% of 244 decks
+45% synergy
Dimir Signet
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+39% synergy
Talisman of Indulgence
62% of 8 decks
+36% synergy
Talisman of Creativity
50% of 8 decks
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Talisman of Hierarchy
44% of 25 decks
+19% synergy
Carnelian Orb of Dragonkind
38% of 8 decks
+36% synergy
Talisman of Progress
36% of 25 decks
+13% synergy
Mind Stone
34% of 244 decks
+16% synergy
Fellwar Stone
31% of 244 decks
+10% synergy
Azorius Signet
24% of 25 decks
-2% synergy
Orzhov Signet
24% of 25 decks
-3% synergy
Thought Vessel
20% of 244 decks
+4% synergy
Laser Screwdriver
9% of 178 decks
+9% synergy
Machine God's Effigy
8% of 233 decks
+7% synergy
Everflowing Chalice
7% of 244 decks
+3% synergy
Mana Crypt
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Lands
Command Tower
98% of 244 decks
+24% synergy
Hallowed Fountain
76% of 25 decks
+35% synergy
Blood Crypt
75% of 8 decks
+36% synergy
Watery Grave
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+34% synergy
Overgrown Tomb
73% of 11 decks
+30% synergy
Sunken Hollow
69% of 244 decks
+34% synergy
Raffine's Tower
64% of 25 decks
+36% synergy
Godless Shrine
64% of 25 decks
+23% synergy
Meticulous Archive
62% of 16 decks
+52% synergy
Shadowy Backstreet
62% of 16 decks
+49% synergy
Sulfurous Springs
62% of 8 decks
+42% synergy
Luxury Suite
62% of 8 decks
+36% synergy
Dragonskull Summit
62% of 8 decks
+32% synergy
Steam Vents
62% of 8 decks
+23% synergy
Undercity Sewers
62% of 157 decks
+48% synergy
Morphic Pool
61% of 244 decks
+35% synergy
Vault of Champions
60% of 25 decks
+34% synergy
Darkwater Catacombs
58% of 244 decks
+43% synergy
Sea of Clouds
56% of 25 decks
+30% synergy
Zagoth Triome
55% of 11 decks
+24% synergy
Breeding Pool
55% of 11 decks
+13% synergy
Dimir Aqueduct
55% of 244 decks
+37% synergy
Drowned Catacomb
54% of 244 decks
+29% synergy
Underground River
51% of 244 decks
+31% synergy
Polluted Delta
50% of 244 decks
+39% synergy
Training Center
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+22% synergy
Shipwreck Marsh
48% of 244 decks
+29% synergy
Port of Karfell
45% of 244 decks
+43% synergy
Adarkar Wastes
44% of 25 decks
+27% synergy
Caves of Koilos
44% of 25 decks
+16% synergy
Tainted Isle
40% of 244 decks
+29% synergy
Clearwater Pathway
38% of 244 decks
+28% synergy
Graven Cairns
38% of 8 decks
+30% synergy
Haunted Ridge
38% of 8 decks
+22% synergy
Xander's Lounge
38% of 8 decks
+10% synergy
Crumbling Necropolis
38% of 8 decks
+6% synergy
Choked Estuary
36% of 244 decks
+20% synergy
Deserted Beach
28% of 25 decks
+12% synergy
Woodland Chasm
27% of 11 decks
+22% synergy
Rimewood Falls
27% of 11 decks
+22% synergy
Tangled Islet
27% of 11 decks
+20% synergy
Haunted Mire
27% of 11 decks
+19% synergy
Temple of Malady
27% of 11 decks
+11% synergy
Temple of Mystery
27% of 11 decks
+10% synergy
Golgari Rot Farm
27% of 11 decks
+9% synergy
Simic Growth Chamber
27% of 11 decks
+7% synergy
Opulent Palace
27% of 11 decks
+1% synergy
Hinterland Harbor
27% of 11 decks
+0% synergy
Woodland Cemetery
27% of 11 decks
-0% synergy
Fetid Pools
27% of 244 decks
+22% synergy