A few notes on this. The world that I'm using for the Decade crossover is canon up until the end of episode 29, but instead of running into the Rider War World, the events of All Rider vs DaiShocker is utilized instead, thus giving a more positive outlook on this world. Most likely the true ending will be adapted for later, but for now, this is from Einhart's journey along with Tsukasa and Co after she runs into them.( Read more... )
It's widely known that Negi and Ken Akamatsu is a Kamen Rider fan, along with Kotaro, and has been referenced repeatedly in the series. Having Negi with a rider gear that's a mix of hte old and new was definitely something I had in mind. For the Latin impaired, which is all of us, "Tenatio Voco" means "Attack Summon".
Haud Veneficus Murco is Latin for No Magic Sword, and Canis Everto Flatus is Latin for "Dog Black Flame".
Kamen Rider Voco is of course Kamen Rider Summon. And if there's a Howl, I'll come up with something more Latin-y later.