A plot twist could be that Kid Loki has a connection to an alternate dimension where the Avengers are actually the villains. As he tries to figure out this connection, it leads to all sorts of confusion and re - evaluations within the team. Another is that Kid Loki discovers a long - lost Avenger who was thought to be dead, but this Avenger has been corrupted by dark forces. Kid Loki then has to decide whether to side with the Avengers or this new, corrupted figure. And finally, there could be a plot twist where Kid Loki's magic accidentally merges some of the Avengers' powers, creating a completely new and unexpected situation for the team to deal with.
Well, a common plot twist is when Kid Loki turns out to be the only one who can understand an ancient prophecy that involves the Avengers. This throws the whole team into chaos as they have to rely on him to figure out their next moves. Another plot twist could be that Kid Loki's mischievous acts were actually a way to test the Avengers' loyalty and strength, and in the end, he unites them in a way no one expected. Also, he might be able to transform into a powerful being that the Avengers initially thought was a different entity, and this revelation changes their battle plans entirely.