Felhide Spiritbinder + Intruder Alarm + Burning-Tree Emissary + Hermetic Study

Felhide Spiritbinder

Intruder Alarm

Burning-Tree Emissary

Hermetic Study

How it works

1. Activate Felhide Spiritbinder by tapping it, dealing 1 damage to any target.
2. Cast Burning-Tree Emissary by paying R/GR/G.
3. When Burning-Tree Emissary enters the battlefield, it and Intruder Alarm trigger.
4. Resolve the Burning-Tree Emissary trigger, adding .
5. Resolve the Intruder Alarm trigger, untapping all creatures.
6. Felhide Spiritbinder triggers, holding priority, activate it by tapping it, dealing 1 damage to any target.
7. Resolve the Felhide Spiritbinder trigger, causing you to pay 1 to create a token copy of Burning-Tree Emissary with haste.
8. Repeat from step 3.

This intricate loop transforms a modest minotaur into an infinite manufacturing plant by exploiting the global untap trigger of Intruder Alarm. With Hermetic Study granting Felhide Spiritbinder the ability to tap itself for damage, every iteration starts by casting Burning-Tree Emissary to generate mana and trigger the Alarm, which untaps your board. That fresh untap fires off Felhide Spiritbinder's inspired ability to pay for and churn out another haste-imbued copy of Burning-Tree Emissary, feeding the cycle infinitely.