User blog comment:FairyRaven/Fairy Tail Chapter 391: Gray vs. Silver, Review and Commentary/@comment-162.157.233.242-20140704183242/@comment-25111584-20140704184210

One of my most hoped for developments, but also one I think is extremely improbable. Learning that sort of magic in one battle (or arc)? Nah, not possible. ... Unless, well, you know, Mashima ... and, well, ... /me mutters to a halt.