Max Damage on Thunder Clap

I want to set a maximum damage for thunderclap, similar to the field available for most targetable AoE spells.

- What is the "specific damage" damage field in thunder clap?
- Should I use another ability (from a dummy cast)?
- Should I just trigger the damage?

Triggering the damage would probably be your best option.

Or, a dummy ability that creates a dummy to cast a 1 distance shockwave.

For some reason, I had dummy Flame Strike in my mind.