User blog comment:DamonDraco/World's Most Waited Royale/@comment-4728047-20151006171125/@comment-14973435-20151007132140

Looking over Mamoru, I would have to say he is eligible to join the Dragon Slayer Royale. Not only does he possess a great amount of combat experience and usage over his own magic, but his motive is quite clear as well, which I assume is to be the strongest among Dragon Slayers, though you can still give his reasoning if it is something different.

However, there is a small issue and that is the small amount of detail that is put into his spell itself. I would suggest adding more and if you need help, I will gladly assist you if you need it.

Overall, he has my approval to join in.