User blog comment:Miskos3/Fairy Tail 512: Sting, the White Shadow Dragon, Review/@comment-112.203.178.239-20161130100409/@comment-7418318-20161130112516

What do you mean "he will"? He already did back in the GMG. Unlike Sting he immediately started diving in and out of shadows and dragged Rogue out as well.

But then Gajeel was already sunk partially into the shadows when he started to eat the magic, which might have helped him in understanding the process faster.