>>39640422Togedemaru is also signature move. A lot of the Gen VII Pokemon have signature moves and/or abilities. Considering the Totem wasn't introduced until USUM, I think that is the secondary aspect.
Also, I think Morpeko is an example of Pokemon that can form change in the middle of battle. But I do have a feeling it will get a Gigantamax form much like Pikachu.
>>39638196Mimikyu does not count.
1) Not Electric-type.
2) Does not learn Nuzzle naturally, the move that only Pikachu and its clones can learn.
3) Not in the Fairy or Field egg group.
