Ooh right right. Yeah, I didn't have one of those before, but I recently pulled another source of it. That makes a lot of sense. Although I find my Wings Of Mercy Camilla unable to use it by a couple of HP quit often when I wish I had it. Then again she needs to teleport adjacent to enemies whereas Olivia doesn't, so yeah, that makes sense.
FCorrin is extremely hard to one-shot too (unless you're Julia) so she tends to hang around at low HP a lot. Unfortunately a neutral attack Lucina misses knocking her down to 40% by a few HP the way I have her right now, so I may need to cut her +HP A skill. Not sure what I would replace it with, and it does save my ass at times, but it might be worth picking something else for use with teams that have Wings Of Mercy 2 users.