Emeria Shepherd + Felidar Guardian + Ashnod's Altar
Emeria Shepherd
Felidar Guardian
Ashnod's Altar
Requires
Emeria Shepherd must be on the battlefield.
Felidar Guardian must be in hand.
Ashnod's Altar must be on the battlefield.
You control Plains.
Mana needed: 
Steps
- Cast Felidar Guardian by paying .
- Felidar Guardian enters the battlefield, blinking Plains.
- Emeria Shepherd triggers.
- Holding priority, activate Ashnod's Altar by sacrificing Felidar Guardian, adding .
- Resolve the Emeria Shepherd trigger, returning Felidar Guardian from your graveyard to the battlefield.
- Repeat from step 2.
Results
Infinite colorless mana. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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Expedition Map
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Sylvan Library
24% of 29 decks
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Land Tax
22% of 261 decks
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Animate Dead
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Blessed Sanctuary
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Oblivion Ring
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Gift of Immortality
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Ghostly Prison
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Evolutionary Leap
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Survival of the Fittest
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Angelic Renewal
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Court of Ardenvale
11% of 87 decks
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Authority of the Consuls
11% of 261 decks
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Pattern of Rebirth
10% of 29 decks
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Defense of the Heart
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Growing Rites of Itlimoc
10% of 29 decks
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Utopia Sprawl
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Doubling Season
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Wild Growth
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Fanatical Devotion
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Ajani's Welcome
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Banishing Light
9% of 261 decks
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Blind Obedience
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Seal from Existence
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Retreat to Emeria
8% of 261 decks
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Darksteel Mutation
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Smuggler's Share
8% of 253 decks
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6% of 62 decks
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Journey to Nowhere
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Cleric Class
5% of 257 decks
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Court of Grace
5% of 259 decks
+2% synergy
Planeswalkers
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36% of 185 decks
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Fountainport
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War Room
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Reliquary Tower
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Boseiju, Who Endures
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Bojuka Bog
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Gavony Township
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Castle Ardenvale
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High Market
15% of 261 decks
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Hall of Heliod's Generosity
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Dryad Arbor
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Command Beacon
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Temple of the False God
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Terrain Generator
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Strip Mine
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Homeward Path
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Field of Ruin
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Arid Archway
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Emergence Zone
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Field of the Dead
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Karoo
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Inventors' Fair
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Talisman of Unity
17% of 29 decks
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Fellwar Stone
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Caged Sun
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Marble Diamond
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Jeweled Lotus
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Commander's Sphere
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Liquimetal Torque
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Mana Vault
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Skyclave Relic
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67% of 6 decks
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Underground Sea
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59% of 29 decks
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Temple Garden
59% of 29 decks
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Lush Portico
57% of 7 decks
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57% of 14 decks
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56% of 9 decks
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Clifftop Retreat
40% of 15 decks
+12% synergy
Bountiful Promenade
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+14% synergy
Myriad Landscape
36% of 261 decks
+17% synergy
Selesnya Sanctuary
34% of 29 decks
+20% synergy
Brushland
34% of 29 decks
+19% synergy
Prairie Stream
33% of 9 decks
-0% synergy
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31% of 13 decks
+17% synergy
Overgrown Farmland
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+15% synergy
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29% of 14 decks
+13% synergy
Vault of Champions
29% of 14 decks
+3% synergy
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28% of 29 decks
+15% synergy
Fortified Village
28% of 29 decks
+12% synergy
Rugged Prairie
27% of 15 decks
+16% synergy
Boros Garrison
27% of 15 decks
+12% synergy
Battlefield Forge
27% of 15 decks
+1% synergy
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24% of 29 decks
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Concealed Courtyard
21% of 14 decks
+16% synergy
Scrubland
21% of 14 decks
+8% synergy
Horizon Canopy
21% of 29 decks
+16% synergy
Command Tower
20% of 261 decks
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Alpine Meadow
20% of 15 decks
+17% synergy
Rustvale Bridge
20% of 15 decks
+15% synergy
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20% of 25 decks
+14% synergy
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20% of 15 decks
+7% synergy
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20% of 15 decks
+7% synergy
Temple of Triumph
20% of 15 decks
+3% synergy
Spectator Seating
20% of 15 decks
-5% synergy
Razorverge Thicket
17% of 29 decks
+12% synergy
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17% of 29 decks
+9% synergy
Demolition Field
16% of 236 decks
+12% synergy
Urza's Cave
15% of 39 decks
+11% synergy
Graypelt Refuge
14% of 29 decks
+10% synergy
Wooded Bastion
14% of 29 decks
+9% synergy
Sungrass Prairie
14% of 29 decks
+2% synergy
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12% of 260 decks
+3% synergy
Marsh Flats
11% of 261 decks
+0% synergy
Evolving Wilds
11% of 261 decks
-9% synergy
Flagstones of Trokair
11% of 261 decks
+10% synergy