User blog comment:Stbk22/Possible Power up's/Techniques for then new group DxD/@comment-222.222.236.107-20131224034037/@comment-82.40.154.8-20140104103450

Maybe it could be something alone the lines of changing the Red scale Mail to produce new and diffrent abilities. Like Illigeal Move trident except it doesn't change his current promotion and has a larger range, bassically filling in for his lack of talent for Technioques and Magic.

Or possibley Issei 'Raises' more mini dragons, like the one for that replaced the 'Dividing gear', and they each have their own unique ability. They also could grow in size as Issei gets more profecint with Each of their abilites. Sort of like Cao Cao's true longinus sub-species Balance Breaker.

The names could be something like 'Red Dragon Emperor's Royal Armory'  and for the latter 'Red Dragon Emoperor's Dragon Legion'?