Ghave, Guru of Spores + Phyrexian Altar + Butcher Ghoul + Corpse Knight

Ghave, Guru of Spores
Phyrexian Altar
Butcher Ghoul
Corpse Knight

Requires
Ghave, Guru of Spores must be on the battlefield. Phyrexian Altar must be on the battlefield. Butcher Ghoul must be on the battlefield. Corpse Knight must be on the battlefield. Butcher Ghoul does not have a +1/+1 counter on it.
Steps
  1. Activate Phyrexian Altar by sacrificing Butcher Ghoul, adding 1.
  2. Butcher Ghoul's undying triggers, returning Butcher Ghoul from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Butcher Ghoul enters the battlefield triggering Corpse Knight, causing each opponent to lose 1 life.
  4. Activate Ghave's second ability by paying 1 and removing a +1/+1 counter from Butcher Ghoul, creating a 1/1 Saproling creature token.
  5. The Saproling token enters the battlefield triggering Corpse Knight, causing each opponent to lose 1 life.
  6. Repeat.
Results
Infinite colored mana. Infinite creature tokens. Infinite ETB. Infinite lifeloss. Infinite LTB. Infinite +1/+1 counters. Infinite sacrifice triggers. Infinite death triggers.

Ghave, Guru of Spores
1.60% of 6423 decks 103 decks
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0.13% of 754 decks 1 decks
Karador, Ghost Chieftain
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Tayam, Luminous Enigma
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78% of 106 decks +78% synergy
Zulaport Cutthroat
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39% of 106 decks +34% synergy
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38% of 106 decks +27% synergy
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21% of 106 decks +13% synergy
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8% of 106 decks +4% synergy
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8% of 106 decks +4% synergy
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7% of 106 decks +2% synergy
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5% of 96 decks -5% synergy
Mana Artifacts
Sol Ring
97% of 106 decks +13% synergy
Arcane Signet
74% of 106 decks +2% synergy
Golgari Signet
20% of 106 decks +7% synergy
Selesnya Signet
19% of 106 decks +10% synergy
Orzhov Signet
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Mana Crypt
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Talisman of Resilience
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Jeweled Lotus
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Talisman of Hierarchy
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Commander's Sphere
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Lotus Petal
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Talisman of Unity
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Fellwar Stone
11% of 106 decks -10% synergy
Chrome Mox
9% of 106 decks +3% synergy
Chromatic Lantern
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Mana Vault
8% of 106 decks +2% synergy
Lands
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97% of 106 decks +23% synergy
Overgrown Tomb
78% of 106 decks +36% synergy
Temple Garden
71% of 106 decks +30% synergy
Godless Shrine
71% of 106 decks +30% synergy
Undergrowth Stadium
62% of 103 decks +36% synergy
Verdant Catacombs
58% of 106 decks +47% synergy
Indatha Triome
57% of 105 decks +26% synergy
Marsh Flats
57% of 106 decks +45% synergy
Bountiful Promenade
57% of 106 decks +32% synergy
Windswept Heath
55% of 106 decks +44% synergy
Vault of Champions
48% of 103 decks +22% synergy
Llanowar Wastes
46% of 106 decks +21% synergy
Deceptive Landscape
44% of 9 decks +31% synergy
Woodland Cemetery
42% of 106 decks +15% synergy
Exotic Orchard
42% of 106 decks +6% synergy
Sandsteppe Citadel
40% of 106 decks +14% synergy
Caves of Koilos
36% of 106 decks +8% synergy
Sunpetal Grove
33% of 106 decks +10% synergy
Isolated Chapel
32% of 106 decks +5% synergy
City of Brass
28% of 106 decks +20% synergy
Canopy Vista
28% of 106 decks -8% synergy
Deathcap Glade
28% of 98 decks +14% synergy
Brushland
27% of 106 decks +11% synergy
Twilight Mire
26% of 106 decks +17% synergy
Branchloft Pathway
25% of 103 decks +17% synergy
Overgrown Farmland
24% of 99 decks +8% synergy
Darkbore Pathway
22% of 103 decks +14% synergy
Evolving Wilds
22% of 106 decks +1% synergy
Brightclimb Pathway
20% of 103 decks +10% synergy
Wooded Bastion
20% of 106 decks +15% synergy
Prismatic Vista
20% of 106 decks +14% synergy
Fabled Passage
18% of 106 decks +9% synergy
Shattered Sanctum
17% of 98 decks +4% synergy
Bayou
17% of 106 decks +3% synergy
Mana Confluence
16% of 106 decks +9% synergy
Fetid Heath
16% of 106 decks +5% synergy
Savannah
16% of 106 decks +3% synergy
Scrubland
16% of 106 decks +2% synergy
Nurturing Peatland
15% of 106 decks +9% synergy
Polluted Delta
15% of 106 decks +4% synergy
Misty Rainforest
15% of 106 decks +3% synergy
Wooded Foothills
14% of 106 decks +4% synergy
Bloodstained Mire
14% of 106 decks +4% synergy
Arid Mesa
14% of 106 decks +4% synergy
Terramorphic Expanse
14% of 106 decks -2% synergy
Underground Mortuary
13% of 23 decks -4% synergy
Flooded Strand
11% of 106 decks +1% synergy
Golgari Rot Farm
10% of 106 decks -7% synergy
Reflecting Pool
9% of 106 decks +4% synergy
Temple of Malady
9% of 106 decks -7% synergy