Bellowing Aegisaur + Ghyrson Starn, Kelermorph + Spark Double + Temple Altisaur

URW identity

Commander legal

The 4 combo pieces

What must be in place

You have a way to give Bellowing Aegisaur indestructible.
You have a way to deal damage to Bellowing Aegisaur.

How to execute it

  1. Give Bellowing Aegisaur indestructible by any method.
  2. Deal damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
  3. Bellowing Aegisaur, Ghyrson Starn, and Spark Double trigger.
  4. Resolve the Spark Double trigger, dealing 2 damage to any target.
  5. Resolve the Ghyrson Starn trigger, dealing 2 damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
  6. Spark Double and Bellowing Aegisaur trigger.
  7. Resolve the Bellowing Aegisaur trigger, putting a +1/+1 counter on each other creature you control.
  8. Resolve the Spark Double trigger, dealing 2 damage to Bellowing Aegisaur, with all but 1 of that damage being prevented by Temple Altisaur.
  9. Ghyrson Starn and Bellowing Aegisaur trigger.
  10. Repeat from step 5.

What the combo produces