Ashnod's Altar + Dual Nature + Heidar, Rimewind Master + and 2 others

GUR identity

Commander legal

The 5 combo pieces

What must be in place

Heidar does not have summoning sickness.
You control at least four snow permanents.

How to execute it

  1. Cast Kobolds of Kher Keep by paying {0}.
  2. When Kobolds of Kher Keep 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 Kobolds of Kher Keep.
  5. Activate Ashnod's Altar by sacrificing the Kobolds of Kher Keep token, adding {C}{C}.
  6. Activate Heidar by paying {2} and tapping it, returning Kobolds of Kher Keep to your hand from the battlefield.
  7. Dual Nature's second ability triggers, exiling nothing.
  8. Repeat.

What the combo produces