Okay, so I talked this over with Anduin and we agree that while there are strong parallels for "someone under Lyall's protection" getting grievously injured, the healing part is rather more tenuous because it seems like, from Anthony's request, that it's going to be more like damage resistance than healing and it's an entirely internal rather than external force responsible (i.e., no one is stepping in to heal Anthony with or without Lyall's intervention).

From this perspective, we feel as though it would be best if the Echo memory were limited to just the part where Biffy (that name I can't) is seriously injured and Lyall fears for his life. If that would be doable, please let us know.

Alternately, I wouldn't doubt that there's a chance you can get a stronger parallel later down the line. After all, combat stuff has been seen in the past to ramp up now and again, and with healer characters around... well, you never know.