Talk:Omni-Magic/@comment-26434428-20150728055645/@comment-24053170-20150728063117

from the fairy tail wiki on bluenote stinger - He also made claim that, being attuned to the flow of Magic, he could potentially process and use any spell in existence, even the highly-exclusive Fairy Glitter.

He said the same thing in both the anime and the manga. So yes, he is a user of omni-magic.