First Day of Class + Murderous Redcap + Viscera Seer
First Day of Class
Murderous Redcap
Viscera Seer
Requires
First Day of Class must be in hand.
Murderous Redcap must be on the battlefield.
Viscera Seer must be on the battlefield.
Mana needed: 
Steps
- Cast First Day of School, causing it so that each creature that enters the battlefield under your control this turn gets a +1/+1 counter put on it and gains haste until end of turn.
- Activate Viscera Seer, sacrificing Murderous Redcap to scry one.
- Murderous Redcap's persist triggers, returning it to the battlefield with a -1/-1 counter.
- First Day of School triggers, putting a +1/+1 counter on Murderous Redcap.
- Murderous Redcap triggers, dealing 2 damage to any target.
- Repeat from step 2.
Results
Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite scry.
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Blasting Station
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Insidious Roots
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Smothering Tithe
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Birthing Ritual
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Uncivil Unrest
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Animate Dead
14% of 950 decks
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Reconnaissance
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Underworld Breach
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Sylvan Library
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Fecundity
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Evolutionary Leap
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Phyrexian Arena
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Cathars' Crusade
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Tribute to the World Tree
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Unspeakable Symbol
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Food Chain
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Necropotence
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Black Market Connections
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Greater Good
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Deathreap Ritual
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Grave Pact
6% of 950 decks
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Funeral Room // Awakening Hall
6% of 100 decks
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Descent into Avernus
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Dictate of Erebos
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Nahiri's Machinations
6% of 72 decks
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Behind the Scenes
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Deafening Silence
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Anointed Procession
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The Meathook Massacre
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Journey to Eternity
5% of 146 decks
+2% synergy
Sneak Attack
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+3% synergy
Warstorm Surge
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Planeswalkers
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Utility Lands
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Phyrexian Tower
20% of 950 decks
+12% synergy
Otawara, Soaring City
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Urborg, Tomb of Yawgmoth
15% of 950 decks
+5% synergy
Ancient Tomb
15% of 950 decks
+4% synergy
Mudflat Village
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High Market
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+10% synergy
Rockface Village
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+10% synergy
Takenuma, Abandoned Mire
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Reliquary Tower
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Boseiju, Who Endures
9% of 145 decks
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Arena of Glory
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Rogue's Passage
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Spymaster's Vault
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Kessig Wolf Run
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Eiganjo, Seat of the Empire
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Riptide Laboratory
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Urza's Saga
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Shivan Gorge
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Three Tree City
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Cephalid Coliseum
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Forge of Heroes
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Forgotten Cave
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Mortuary Mire
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Mana Artifacts
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Talisman of Dominance
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Talisman of Creativity
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Talisman of Indulgence
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Dimir Signet
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+14% synergy
Izzet Signet
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+9% synergy
Talisman of Conviction
33% of 72 decks
+10% synergy
Talisman of Hierarchy
33% of 72 decks
+9% synergy
Orzhov Signet
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+6% synergy
Fellwar Stone
31% of 950 decks
+10% synergy
Boros Signet
28% of 72 decks
+4% synergy
Golgari Signet
20% of 146 decks
+7% synergy
Mind Stone
19% of 950 decks
+2% synergy
Gruul Signet
17% of 146 decks
+5% synergy
Lotus Petal
15% of 950 decks
+9% synergy
Commander's Sphere
14% of 950 decks
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Chrome Mox
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+7% synergy
Mana Crypt
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+4% synergy
Talisman of Resilience
12% of 146 decks
-0% synergy
Mana Vault
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Talisman of Impulse
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+2% synergy
Mox Amber
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+6% synergy
Mox Opal
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+5% synergy
Mox Diamond
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+4% synergy
Cursed Mirror
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+3% synergy
Jeweled Lotus
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+1% synergy
Relic of Sauron
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Thought Vessel
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Lion's Eye Diamond
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+4% synergy
Boros Cluestone
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+5% synergy
Mardu Banner
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+4% synergy
Springleaf Drum
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+3% synergy
Charcoal Diamond
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-0% synergy
Fire Diamond
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-0% synergy
Patchwork Banner
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Lands
Command Tower
89% of 950 decks
+15% synergy
Shivan Reef
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Watery Grave
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Steam Vents
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+11% synergy
Smoldering Marsh
48% of 950 decks
+16% synergy
Underground River
46% of 138 decks
+27% synergy
Godless Shrine
44% of 72 decks
+4% synergy
Dragonskull Summit
44% of 950 decks
+13% synergy
Twisted Landscape
44% of 25 decks
+23% synergy
Cinder Glade
43% of 146 decks
+5% synergy
Caves of Koilos
43% of 72 decks
+15% synergy
Blood Crypt
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+4% synergy
Crumbling Necropolis
43% of 138 decks
+12% synergy
Sacred Foundry
42% of 72 decks
+5% synergy
Sulfurous Springs
41% of 950 decks
+21% synergy
Temple Garden
40% of 15 decks
-1% synergy
Training Center
40% of 138 decks
+12% synergy
Savage Lands
40% of 146 decks
+16% synergy
Morphic Pool
39% of 138 decks
+13% synergy
Xander's Lounge
39% of 135 decks
+11% synergy
Exotic Orchard
38% of 950 decks
+2% synergy
Overgrown Tomb
38% of 146 decks
-5% synergy
Drowned Catacomb
36% of 138 decks
+11% synergy
Elegant Parlor
36% of 28 decks
+26% synergy
Shadowy Backstreet
36% of 28 decks
+22% synergy
Luxury Suite
36% of 950 decks
+9% synergy
Stomping Ground
35% of 146 decks
-6% synergy
Battlefield Forge
35% of 72 decks
+9% synergy
Llanowar Wastes
34% of 146 decks
+9% synergy
Savannah
33% of 15 decks
+20% synergy
Nomad Outpost
33% of 72 decks
+6% synergy
Bloodstained Mire
33% of 950 decks
+23% synergy
Isolated Chapel
32% of 72 decks
+5% synergy
Ziatora's Proving Ground
32% of 145 decks
-0% synergy
Sulfur Falls
31% of 138 decks
+1% synergy
Spectator Seating
31% of 72 decks
+5% synergy
Tundra
30% of 10 decks
+16% synergy
The World Tree
30% of 10 decks
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Vault of Champions
29% of 72 decks
+3% synergy
Savai Triome
29% of 72 decks
+2% synergy
Clifftop Retreat
29% of 72 decks
+1% synergy
Sunken Hollow
29% of 138 decks
-6% synergy
Foreboding Ruins
29% of 950 decks
+13% synergy
Woodland Cemetery
28% of 146 decks
+0% synergy
Tropical Island
27% of 11 decks
+13% synergy
Tainted Peak
27% of 950 decks
+17% synergy
Bountiful Promenade
27% of 15 decks
+2% synergy
Jetmir's Garden
27% of 15 decks
-6% synergy
Rootbound Crag
26% of 146 decks
+2% synergy
Evolving Wilds
25% of 950 decks
+4% synergy