Felhide Spiritbinder + Intruder Alarm + Burning-Tree Emissary + Hypervolt Grasp

Felhide Spiritbinder

Intruder Alarm

Burning-Tree Emissary

Hypervolt Grasp

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 clever engine turns a simple loop into an absolute powerhouse by leaning heavily on **Intruder Alarm**'s global untap trigger whenever a creature enters the battlefield. You begin by enchanting **Felhide Spiritbinder** with **Hypervolt Grasp**, granting it the crucial tap ability to deal damage while setting up the cycle. Every time you cast **Burning-Tree Emissary**, its entry triggers **Intruder Alarm** to untap your board, which in turn untaps **Felhide Spiritbinder** to trigger its inspired ability. By using the mana refunded from **Burning-Tree Emissary** along with the **Hypervolt Grasp** package, you perpetually loop copies, damage, and untaps until the board is completely overwhelmed.