Source: https://www.deviantart.com/scruffyeevee/art/SSED-Swordblade-1210844888
Author's Comment:
Swordblade Lightfire, the shiny jolteon!!!
Swordblade is a shiny jolteon adopted into the Lightfire family as a kit. He was a wild pokemon that the trainer found in Paldea! She named him a really dumb name then boxed him immediately though, not wanting to use a shiny jolteon in her team. Swordblade is really soft spoken and meek, quite the opposite of how most pokemon from the wild are, but he's also REALLY intelligent! Becoming a teacher for the high level eevees due to how much he wants to help the box and how smart he is! Swordblade really deeply loves his adoptive family, and Brayden loves him too, in fact, Swordblade is one of his very obvious favorites! Despite his tendency to fade in the background of the PopU's in comparison to the other members, Swordblade is very well known in the box due to him teaching for so many years! (Also he has a very VERY obvious crush on another teacher, Miku)
Swordblade- https://toyhou.se/23972709.swordblade
Here is the official SSED family tree for those who want to see it!