Scars on his face doesn't mean he fought Acnologia,it can be from thousand other reasons and definitely Acnologia isn't a person who will leave his opponent with just few scars,and Metalicana wouldn't express his surprise at Igneel losing to Acnologia if he really lost once.
P.S. if from the nest time want to reply to me use the reply below the post,otherwise i won't reply back.
P.S. if from the nest time want to reply to me use the reply below the post,otherwise i won't reply back.