Isochron Scepter
To Arms!
Ioreth of the Healing House

   Prerequisites

What do I need to start this combo?
To Arms! in exile (To Arms! exiled by Isochron Scepter in exile).
Isochron Scepter and Ioreth of the Healing House on the battlefield.
Creatures you control can tap to produce at least 2. Ioreth of the Healing House does not have summoning sickness.

   Steps

How does this combo work?
1
Activate any number of creatures by tapping it, adding at least 2.
2
Activate Isochron Scepter by paying 2 and tapping it, casting a copy of To Arms! without paying its mana cost.
3
Resolve the copy of To Arms!, untapping all creatures you control and causing you to draw a card.
4
Activate Ioreth of the Healing House by tapping it, untapping Isochron Scepter.
5
Repeat.
6
If creatures you control can tap to produce at least 3, this combo nets near-infinite mana.

   Results

What do I get from this combo?
Infinite card draw
Infinite draw triggers
Near-infinite storm count
Near-infinite magecraft triggers
Near-infinite untap of creatures you control
Near-infinite mana creatures you control can produce
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