Sydri, Galvanic Genius + Cauldron Familiar + Witch's Oven + Intruder Alarm
Sydri, Galvanic Genius
Cauldron Familiar
Witch's Oven
Intruder Alarm
Requires
Sydri, Galvanic Genius must be on the battlefield.
Cauldron Familiar must be on the battlefield.
Witch's Oven must be on the battlefield.
Intruder Alarm must be on the battlefield.
Witch's Oven does not have summoning sickness.
Mana needed: 
Steps
- Activate Sydri's first ability by paying , causing Witch's Oven to become an artifact creature until end of turn.
- Activate Witch's Oven by tapping it and sacrificing Cauldron Familiar, creating a Food artifact token.
- Activate Cauldron Familiar by sacrificing a Food token, returning it from your graveyard to the battlefield.
- When Cauldron Familar enters the battlefield, it and Intruder Alarm trigger.
- Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life.
- Resolve the Intruder Alarm trigger, untapping all creatures.
- Repeat from step 2.
Results
Infinite death triggers. Infinite ETB. Infinite lifegain. Infinite lifegain triggers. Infinite lifeloss. Infinite LTB. Infinite sacrifice triggers. Infinite untap of all creatures.
Top Commanders (2)
Inquisitor Greyfax
0.06% of 1541 decks
1 decks
Sydri, Galvanic Genius
0.05% of 2188 decks
1 decks
Creatures (33)
Rootwater Diver
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+50% synergy
Ardent Recruit
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Salvage Scout
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Aegis Turtle
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Sludge Strider
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Sanitarium Skeleton
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Merchant's Dockhand
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Evolved Sleeper
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Hargilde, Kindly Runechanter
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Leonin Elder
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Bloodghast
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Selfless Savior
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Stonecoil Serpent
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Skirge Familiar
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Memnite
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Metalwork Colossus
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Hangarback Walker
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Contraband Kingpin
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Wernog, Rider's Chaplain
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Eloise, Nephalia Sleuth
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Reassembling Skeleton
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Nadier's Nightblade
50% of 2 decks
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Pitiless Plunderer
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Kappa Cannoneer
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Tivit, Seller of Secrets
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Viscera Seer
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Loran of the Third Path
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Marionette Master
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Academy Manufactor
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Cyberdrive Awakener
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Solemn Simulacrum
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Instants (33)
March of Otherworldly Light
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Swan Song
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An Offer You Can't Refuse
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Nix
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Ashnod's Intervention
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Foil
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Sinister Sabotage
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Argivian Find
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Loran's Escape
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Stifle
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Blacksmith's Skill
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Mana Tithe
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Rapid Hybridization
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Pongify
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Angel's Grace
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Ad Nauseam
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Deadly Dispute
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Lim-Dûl's Vault
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Mental Misstep
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Demonic Consultation
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Pact of Negation
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Force of Negation
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Force of Will
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+37% synergy
Dark Ritual
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Mystical Tutor
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Arcane Denial
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Brainstorm
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Enlightened Tutor
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Path to Exile
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Talisman of Progress
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Talisman of Hierarchy
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Talisman of Dominance
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Dimir Signet
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Jwar Isle Refuge
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Scoured Barrens
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Spire of Industry
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Command Tower
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