Gerrard, Weatherlight Hero + Molten Echoes + Altar of Dementia
Gerrard, Weatherlight Hero
Molten Echoes
Altar of Dementia
Requires
Gerrard, Weatherlight Hero must be in hand, or in the command zone.
Molten Echoes must be on the battlefield.
Altar of Dementia must be on the battlefield.
"Human" or "Soldier" chosen with Molten Echoes.
Mana needed: 
plus enough mana to pay for commander tax, if applicable
plus enough mana to pay for commander tax, if applicable
Steps
- Cast Gerrard either from your graveyard or from the command zone by paying and commander tax, if applicable.
- Gerrard enters the battlefield, triggering Molten Echoes, creating a token copy of Gerrard with haste.
- Put the nontoken Gerrard into your graveyard due to the legend rule.
- The nontoken Gerrard dies, triggering its ability.
- Holding priority, activate Altar of Dementia by sacrificing the token Gerrard.
- The token Gerrard dies, exiling itself and returning the nontoken Gerrard from your graveyard to the battlefield.
- Repeat from step 2 an arbitrarily large number of times.
- Resolve all Altar of Dementia abilities, causing any number of players to mill infinite cards.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite mill. Infinite sacrifice triggers. Infinite self-mill.
Gerrard, Weatherlight Hero
4.17% of 408 decks
17 decks
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High Synergy Cards
Goblin Bombardment
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+89% synergy
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+81% synergy
Ashnod's Altar
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+73% synergy
Goblin Engineer
71% of 21 decks
+68% synergy
Phyrexian Altar
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62% of 21 decks
+59% synergy
Sevinne's Reclamation
62% of 21 decks
+55% synergy
Impact Tremors
62% of 21 decks
+52% synergy
Nim Deathmantle
52% of 21 decks
+52% synergy
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45% of 20 decks
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Top Cards
Swords to Plowshares
81% of 21 decks
+18% synergy
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62% of 21 decks
+44% synergy
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55% of 20 decks
+34% synergy
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+42% synergy
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+35% synergy
Creatures
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+65% synergy
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+45% synergy
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+41% synergy
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Kiki-Jiki, Mirror Breaker
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+34% synergy
Reckless Fireweaver
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35% of 20 decks
+29% synergy
Fiend Hunter
33% of 21 decks
+32% synergy
Scrap Trawler
33% of 21 decks
+31% synergy
Goblin Welder
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Karmic Guide
33% of 21 decks
+29% synergy
Solemn Simulacrum
33% of 21 decks
+19% synergy
Atsushi, the Blazing Sky
30% of 20 decks
+27% synergy
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29% of 21 decks
+26% synergy
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29% of 21 decks
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Drannith Magistrate
29% of 21 decks
+22% synergy
Loran of the Third Path
26% of 19 decks
+19% synergy
Oswald Fiddlebender
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+23% synergy
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+23% synergy
Skyclave Apparition
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24% of 21 decks
+19% synergy
Dualcaster Mage
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+19% synergy
Welcoming Vampire
20% of 20 decks
+14% synergy
Salvager of Ruin
19% of 21 decks
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Arcbound Ravager
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19% of 21 decks
+17% synergy
Reveillark
19% of 21 decks
+17% synergy
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19% of 21 decks
+16% synergy
Mentor of the Meek
19% of 21 decks
+13% synergy
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15% of 20 decks
+14% synergy
Cadric, Soul Kindler
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+13% synergy
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15% of 20 decks
+12% synergy
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15% of 20 decks
+6% synergy
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14% of 21 decks
+12% synergy
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Instants
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Faith's Reward
38% of 21 decks
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33% of 21 decks
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33% of 21 decks
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30% of 10 decks
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Red Elemental Blast
29% of 21 decks
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Teferi's Protection
29% of 21 decks
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23% of 13 decks
+18% synergy
Angel's Grace
14% of 21 decks
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+3% synergy
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48% of 21 decks
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Hour of Revelation
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Wrath of God
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19% of 21 decks
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Ondu Inversion
14% of 21 decks
+12% synergy
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Altar of the Brood
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Enchantments
Animate Dead
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Smothering Tithe
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Lion's Eye Diamond
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Mox Opal
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Lands
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52% of 21 decks
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45% of 20 decks
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Exotic Orchard
38% of 21 decks
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Prismatic Vista
33% of 21 decks
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33% of 21 decks
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Rustvale Bridge
30% of 20 decks
+25% synergy
Spire of Industry
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Inspiring Vantage
24% of 21 decks
+20% synergy
Gemstone Caverns
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City of Brass
24% of 21 decks
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Temple of Triumph
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Cavern of Souls
19% of 21 decks
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Fabled Passage
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Wooded Foothills
19% of 21 decks
+9% synergy
Plateau
19% of 21 decks
+7% synergy
Demolition Field
16% of 19 decks
+13% synergy
Furycalm Snarl
15% of 20 decks
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Bloodstained Mire
14% of 21 decks
+4% synergy
Windswept Heath
14% of 21 decks
+4% synergy
Scalding Tarn
14% of 21 decks
+3% synergy
Marsh Flats
14% of 21 decks
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Boros Garrison
14% of 21 decks
-1% synergy
Evolving Wilds
14% of 21 decks
-7% synergy
Path of Ancestry
14% of 21 decks
-7% synergy