Prototype Portal
Retreat to Coralhelm
Ensoul Artifact
Seat of the Synod

   Prerequisites

What do I need to start this combo?
Seat of the Synod in exile (Seat of the Synod exiled by Prototype Portal in exile).
All other permanents on the battlefield.
Ensoul Artifact attached to Prototype Portal. Prototype Portal does not have summoning sickness.

   Steps

How does this combo work?
1
Activate Prototype Portal by tapping it, creating a token copy of Seat of the Synod.
2
When the Seat of the Synod token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal.
3
Repeat.

   Results

What do I get from this combo?
Infinite colored mana
Infinite Forest tokens
Infinite Plains tokens
Infinite Island tokens
Infinite Mountain tokens
Infinite Swamp tokens
Infinite landfall triggers
Infinite copies of a specific land
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