Ulasht, the Hate Seed + Cathars' Crusade + Ashnod's Altar
Ulasht, the Hate Seed
Cathars' Crusade
Ashnod's Altar
Requires
Ulasht, the Hate Seed must be on the battlefield.
Cathars' Crusade must be on the battlefield.
Ashnod's Altar must be on the battlefield.
Ulasht has at least two +1/+1 counters on it.
Mana needed: 
Steps
- Activate Ulasht by paying and removing a +1/+1 counter from it, creating a 1/1 Saproling creature token.
- The Saproling enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
- Activate Ashnod's Altar by sacrificing the Saproling, adding .
- Repeat.
Results
Infinite colorless mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite +1/+1 counters.
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25% of 55 decks
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Growing Rites of Itlimoc
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24% of 37 decks
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Branching Evolution
21% of 48 decks
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Warstorm Surge
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16% of 56 decks
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Earthcraft
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Mayael's Aria
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Privileged Position
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Greater Auramancy
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Burgeoning
11% of 56 decks
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Sylvan Library
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10% of 50 decks
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Inspiring Leader
9% of 44 decks
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Pollenbright Wings
9% of 56 decks
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Dawn's Reflection
9% of 56 decks
+8% synergy
Druids' Repository
9% of 56 decks
+8% synergy
Fecundity
9% of 56 decks
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Death's Presence
9% of 56 decks
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Felidar Retreat
8% of 48 decks
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Rite of Passage
7% of 56 decks
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Glare of Subdual
7% of 56 decks
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Keen Sense
7% of 56 decks
+6% synergy
Defense of the Heart
7% of 56 decks
+5% synergy
Wedding Announcement
6% of 48 decks
+6% synergy
Divine Visitation
6% of 54 decks
+4% synergy
Fists of Ironwood
5% of 56 decks
+5% synergy
Squirrel Nest
5% of 56 decks
+4% synergy
Planeswalkers
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17% of 36 decks
+14% synergy
Xenagos, the Reveler
16% of 56 decks
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Huatli, Radiant Champion
15% of 55 decks
+13% synergy
Elspeth, Sun's Champion
14% of 56 decks
+10% synergy
Utility Lands
Gavony Township
38% of 56 decks
+28% synergy
Vault of the Archangel
36% of 11 decks
+25% synergy
Oran-Rief, the Vastwood
21% of 56 decks
+17% synergy
Reliquary Tower
21% of 56 decks
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21% of 52 decks
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21% of 48 decks
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Vitu-Ghazi, the City-Tree
18% of 56 decks
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Mosswort Bridge
18% of 56 decks
+7% synergy
Yavimaya, Cradle of Growth
17% of 48 decks
+7% synergy
Rogue's Passage
16% of 56 decks
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Temple of the False God
14% of 56 decks
+5% synergy
Dark Depths
11% of 56 decks
+10% synergy
Thespian's Stage
11% of 56 decks
+8% synergy
Windbrisk Heights
9% of 56 decks
+4% synergy
Kessig Wolf Run
7% of 56 decks
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Grove of the Guardian
5% of 56 decks
+5% synergy
Khalni Garden
5% of 56 decks
+4% synergy
Kher Keep
5% of 56 decks
+3% synergy
Scavenger Grounds
5% of 56 decks
+2% synergy
Dryad Arbor
5% of 56 decks
+1% synergy
Spinerock Knoll
5% of 56 decks
+1% synergy
Gaea's Cradle
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Mana Artifacts
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80% of 56 decks
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Arcane Signet
54% of 50 decks
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Chromatic Lantern
18% of 56 decks
+8% synergy
Fellwar Stone
18% of 56 decks
-3% synergy
Gruul Signet
14% of 56 decks
+2% synergy
Talisman of Unity
12% of 56 decks
+5% synergy
Talisman of Impulse
12% of 56 decks
+4% synergy
Commander's Sphere
12% of 56 decks
-3% synergy
Talisman of Conviction
12% of 51 decks
-11% synergy
Boros Signet
11% of 56 decks
-13% synergy
Selesnya Signet
9% of 56 decks
+0% synergy
Thought Vessel
7% of 56 decks
-10% synergy
Lands
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93% of 56 decks
+19% synergy
Indatha Triome
67% of 9 decks
+36% synergy
Godless Shrine
64% of 11 decks
+23% synergy
Exotic Orchard
57% of 56 decks
+22% synergy
Ziatora's Proving Ground
56% of 9 decks
+24% synergy
Overgrown Tomb
55% of 11 decks
+12% synergy
Jetmir's Garden
52% of 48 decks
+19% synergy
Temple Garden
52% of 56 decks
+11% synergy
Stomping Ground
50% of 56 decks
+9% synergy
Blood Crypt
45% of 11 decks
+7% synergy
Jungle Shrine
45% of 56 decks
+13% synergy
Sacred Foundry
45% of 56 decks
+8% synergy
Canopy Vista
43% of 56 decks
+7% synergy
Arid Mesa
39% of 56 decks
+29% synergy
Cinder Glade
39% of 56 decks
+1% synergy
Savage Lands
36% of 11 decks
+13% synergy
Savai Triome
33% of 9 decks
+6% synergy
Wooded Foothills
32% of 56 decks
+22% synergy
Windswept Heath
30% of 56 decks
+20% synergy
Lush Portico
30% of 20 decks
+18% synergy
Sunpetal Grove
29% of 56 decks
+5% synergy
Mana Confluence
27% of 56 decks
+19% synergy
Bountiful Promenade
25% of 55 decks
+1% synergy
Spire Garden
25% of 55 decks
+1% synergy
Commercial District
25% of 20 decks
+13% synergy
Evolving Wilds
25% of 56 decks
+4% synergy
Rootbound Crag
23% of 56 decks
-1% synergy
Marsh Flats
21% of 56 decks
+10% synergy
Verdant Catacombs
21% of 56 decks
+10% synergy
Karplusan Forest
21% of 56 decks
+4% synergy
Elegant Parlor
20% of 20 decks
+11% synergy
Mossfire Valley
20% of 56 decks
+9% synergy
Sungrass Prairie
20% of 56 decks
+8% synergy
Terramorphic Expanse
20% of 56 decks
+4% synergy
Brushland
20% of 56 decks
+4% synergy
Battlefield Forge
20% of 56 decks
-6% synergy
Spectator Seating
19% of 48 decks
-6% synergy
Rockfall Vale
17% of 48 decks
-5% synergy
Rith's Grove
16% of 56 decks
+14% synergy
Reflecting Pool
16% of 56 decks
+11% synergy
City of Brass
16% of 56 decks
+8% synergy
Misty Rainforest
16% of 56 decks
+4% synergy
Wooded Ridgeline
15% of 41 decks
+9% synergy
Wooded Bastion
14% of 56 decks
+10% synergy
Rugged Prairie
14% of 56 decks
+4% synergy
Scalding Tarn
14% of 56 decks
+3% synergy
Selesnya Sanctuary
14% of 56 decks
+0% synergy
Game Trail
14% of 56 decks
-2% synergy
Gruul Turf
14% of 56 decks
-2% synergy
Clifftop Retreat
14% of 56 decks
-14% synergy