Rograkh, Son of Rohgahh + Heidar, Rimewind Master + Intruder Alarm + Dual Nature + Ashnod's Altar

Rograkh, Son of Rohgahh

Heidar, Rimewind Master

Intruder Alarm

Dual Nature

Ashnod's Altar

How it works

1. Cast Rograkh by paying 0.
2. When Rograkh enters the battlefield, Intruder Alarm and Dual Nature's first ability triggers.
3. Resolve the Intruder Alarm trigger, untapping all creatures.
4. Resolve the Dual Nature trigger, creating a token copy of Rograkh.
5. Activate Ashnod's Altar by sacrificing the Rograkh token, adding CC.
6. Activate Heidar by paying 2 and tapping it, returning Rograkh to your hand from the battlefield.
7. Dual Nature's second ability triggers, exiling nothing.
8. Repeat.

This clever loop centers on casting Rograkh, Son of Rohgahh for zero mana, immediately triggering both Intruder Alarm and Dual Nature. Dual Nature provides a fresh token copy of Rograkh upon entry, while Intruder Alarm untaps all creatures—including Heidar, Rimewind Master, assuming you meet its snow-permanent requirement. You can then sacrifice the token to Ashnod's Altar for a burst of colorless mana, which in turn fuels Heidar, Rimewind Master's ability to bounce the original Rograkh back to your hand. Bouncing Rograkh safely avoids Dual Nature's exile penalty, allowing you to replay your commander for free, reset the loop, and generate infinite mana and creature triggers.