Hiccup and Toothless Join Chaldea

During the orleans singularity Ritsuka Fujimaru makes a summoning circle and to experiment she puts a piece of wyvern meat on the circle. Three circles form and then a rider card appears and it starts to spark golden before she knows whats happening she is pinned down by an inky black dragon who is staring her down its eyes slits and focused on her every movement.

So I had this idea for a while and its because I rewatched the Fate Unlimited Blade works and if I remember correctly the assasin was from a story that many people believed to be real but it was a fictional story so it's kind of like they made a fictional character into a real person and so I got this idea were whagt if enough peopel belived in a fictional character that it became real and into the hall of heroes so that's what this is. Also it's my first time using the make a cover thing from canva so if its bad please ignore it.

Also I obviously don't own How to Train Your Dragon or Fate