I thought of a Libra

Blue Flame is a nice skill for defensive units due to how easy it is for positioning, although I think I prefer it on units that can counter at all ranges.

With that said, I'm never foddering Owain. :c

So-so, I say. Ignis hits significantly harder here and would trigger at the same time. If you were using slaying axe, this would be different, but he's very close to the threshold where slaying+ignis = bonded blue flame+wo gun, which is 44 def.