User blog comment:TsurugiFan16/MSPD: Inazuma Debaters!/@comment-5541483-20130626151401/@comment-5541483-20130627023222

But even going by dribbling, Gamma's All Delete is stronger, and he can most certainly use it in miximax. And I mant that Ogre Blade being a SC is an advantage, even if little, i didn't say a SH miximax is better than a MF one. Well, even Rei doesn't get any MF hissatsu in his miximax either.

But according to the anime, a Keshin evolves with an increase in the users strength. Rei can't increase his strength naturally, he has no way of leveling up. While Gamma trained all he could and managed to come to the level he was at Ragnarok from the level he was at France where he lost to raimon the first time. At the same time, Rei's power was exactly the same as it was at Arthur's era. Rei's calmness may be more useful than Gamma's emotion, cause it is anger most of the time. But anger is not always bad. Overconfidence is. What if a teammate gets injured during a match really bad on purpose? Rei can do nothing but keep playing without felling any anger towards the enemy. While Gamma would have anger to fuel his energy, making him strong.