The Echo - Mechanics and Boundaries

[Catapult]

Interesting side-notes: No horns aside from that which the Moogle carries, which seems inconsequential. No obvious ascian activity aside from (possibly) the shadow which takes out several Wailers. Yet again, the archons realize your power due to the event of an echo within an echo.

I came to the same conclusions.
Farrimond's unit being attacked by a "shadow" is the closest we come to what might be an ascian reference.