Elite Arcanist
Great Train Heist

   Prerequisites

What do I need to start this combo?
Elite Arcanist on the battlefield (Elite Arcanist without summoning sickness on the battlefield).
Great Train Heist in exile (Great Train Heist exiled by Elite Arcanist in exile).
Creatures you control can tap to produce at least 3.

   Steps

How does this combo work?
1
Activate any number of creatures by tapping it, adding at least 3.
2
Activate Elite Arcanist by paying 1 and tapping it, copying Great Train Heist and casting the copy without paying its mana cost, and choosing to pay 2 to select its first mode.
3
Resolve the copy of Great Train Heist, untapping all creatures you control and get an additional combat phase if it is currently a combat phase.
4
Repeat.

   Results

What do I get from this combo?
Infinite storm count
Infinite combat phases
Infinite untap of creatures you control
Infinite mana creatures you control can produce
Infinite magecraft triggers
Infinitely powerful creatures you control until end of turn
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New Cards
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100%synergy
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49%synergy
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49%synergy
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49%synergy
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High Synergy Cards
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24%synergy
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22%synergy
Top Cards
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Game Changers
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Creatures
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Instants
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37%synergy
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37%synergy
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Enchantments
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Utility Lands
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Mana Artifacts
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26%synergy
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18%synergy
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14%synergy
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10%synergy
Training Center
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13%synergy
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12%synergy
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3%synergy