Pentavus + Cathars' Crusade + Phyrexian Altar
Pentavus
Cathars' Crusade
Phyrexian Altar
Requires
Pentavus must be on the battlefield.
Cathars' Crusade must be on the battlefield.
Phyrexian Altar must be on the battlefield.
Pentavus has at least two +1/+1 counters on it.
Mana needed: 
Steps
- Activate Pentavus' first ability by paying and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token.
- The Pentavite enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
- Activate Phyrexian Altar by sacrificing the Pentavite, adding .
- Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite +1/+1 counters.
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Talisman of Resilience
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Fellwar Stone
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Talisman of Hierarchy
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Chromatic Orrery
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Everflowing Chalice
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Mind Stone
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Jeweled Lotus
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Mox Opal
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Lotus Petal
7% of 43 decks
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Commander's Sphere
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Lands
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86% of 14 decks
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Godless Shrine
84% of 19 decks
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Sacred Foundry
80% of 10 decks
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Savai Triome
75% of 4 decks
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Stomping Ground
75% of 4 decks
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Temple Garden
74% of 19 decks
+33% synergy
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64% of 14 decks
+33% synergy
Command Tower
58% of 43 decks
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Undergrowth Stadium
50% of 14 decks
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Hallowed Fountain
50% of 6 decks
+9% synergy
Isolated Chapel
47% of 19 decks
+20% synergy
Sunpetal Grove
42% of 19 decks
+19% synergy
Vault of Champions
42% of 19 decks
+16% synergy
Bountiful Promenade
37% of 19 decks
+13% synergy
Sandsteppe Citadel
36% of 14 decks
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Woodland Cemetery
36% of 14 decks
+8% synergy
Rustvale Bridge
33% of 9 decks
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Caves of Koilos
32% of 19 decks
+4% synergy
Clifftop Retreat
30% of 10 decks
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Windswept Heath
28% of 43 decks
+17% synergy
Marsh Flats
28% of 43 decks
+17% synergy
Selesnya Sanctuary
26% of 19 decks
+12% synergy
Temple of Silence
26% of 19 decks
+8% synergy
Verdant Catacombs
23% of 43 decks
+12% synergy
Golgari Rot Farm
21% of 14 decks
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Llanowar Wastes
21% of 14 decks
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Orzhov Basilica
21% of 19 decks
+5% synergy
Canopy Vista
21% of 19 decks
-15% synergy
Wooded Bastion
16% of 19 decks
+11% synergy
Fetid Heath
16% of 19 decks
+5% synergy
Savannah
16% of 19 decks
+3% synergy
Brushland
16% of 19 decks
-0% synergy
Arid Mesa
14% of 43 decks
+3% synergy
Myriad Landscape
14% of 43 decks
-6% synergy
Evolving Wilds
14% of 43 decks
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Path of Ancestry
14% of 43 decks
-7% synergy
Exotic Orchard
14% of 43 decks
-22% synergy
Flagstones of Trokair
12% of 43 decks
+10% synergy
Flooded Strand
12% of 43 decks
+1% synergy
Polluted Delta
12% of 43 decks
+0% synergy
Reflecting Pool
9% of 43 decks
+4% synergy
Misty Rainforest
9% of 43 decks
-2% synergy
The Mycosynth Gardens
8% of 39 decks
+5% synergy
Cavern of Souls
7% of 43 decks
+0% synergy
Mana Confluence
7% of 43 decks
-0% synergy
Bloodstained Mire
7% of 43 decks
-3% synergy