Careful Cultivation
Umbral Mantle
Agatha of the Vile Cauldron

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Umbral Mantle and Careful Cultivation attached to the same creature you control that does not have summoning sickness.

   Steps

How does this combo work?
1
Activate the creature with Careful Cultivation and Umbral Mantle attached by tapping it, adding .
2
Activate the creature by paying at most 2 and untapping it, causing it to get +2/+2 until end of turn.
3
Repeat.
4
If Agatha of the Vile Cauldron has power 2 or greater, this combo nets infinite green mana.

   Results

What do I get from this combo?
Infinite green mana
Infinitely large creature until end of turn
Infinite untap of creatures you control
Infinite mana creatures you control can produce
Agatha of the Vile Cauldron
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Mana Artifacts
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15%synergy
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13%synergy
Chromatic Lantern
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3%synergy
Fellwar Stone
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6%synergy
Lands
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56%synergy
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53%synergy
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39%synergy
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-7%synergy
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15%synergy
Thornspire Verge
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14%synergy
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11%synergy
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2%synergy
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-3%synergy
Spire Garden
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-4%synergy
Opal Palace
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13%synergy
Urza's Cave
15%inclusion5 decks34 decks
12%synergy
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10%synergy
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2%synergy
Terramorphic Expanse
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0%synergy
Cliffgate
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11%synergy
Gruul Guildgate
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8%synergy
Commercial District
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2%synergy
Wooded Foothills
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1%synergy
Game Trail
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-3%synergy
Path of Ancestry
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-10%synergy
Captivating Cave
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9%synergy
Gateway Plaza
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Gond Gate
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8%synergy
Manor Gate
8.8%inclusion3 decks34 decks
7%synergy
Grove of the Burnwillows
8.8%inclusion3 decks34 decks
7%synergy
Wooded Ridgeline
8.8%inclusion3 decks34 decks
4%synergy
Ash Barrens
8.8%inclusion3 decks34 decks
4%synergy
Cragcrown Pathway
8.8%inclusion3 decks34 decks
2%synergy
Arid Mesa
8.8%inclusion3 decks34 decks
-1%synergy