Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20150426033239/@comment-24067344-20150426103838

Leung.longhei wrote: Yeah, and Frank could turn into a dragon and shoot freaking fireballs at Clarrise because I'm sure she can't fly. I know it takes a lot of power and concentration, but Frank still pulled it off in front of a bunch of angry shouting Romans, so I think he could do it again

As of The House of Hades, Frank doesn’t have to concentrate a lot to shape shift. Actually, it’s a lot easier for him to use it, especially since his powers are a lot more fluid. Also, in the Mark of Athena, he mentions that using his powers is like lifting the maximum weight. Since he is stronger now, it’s probably easier for him to shape shift.