My level 81 Aegislash finished off Malva's Chandelure with Shadow Claw, and for some reason Chandelure's Flame Body didn't proc. Every other time I've finished it off, I finished off with a Greninja Night Slash, and it always proc'd. I know for a fact both of these moves are physical moves. Why did this happen?
Flame Body won't burn every time, it only has a 30% chance to burn.