When I'm fighting a villain I usually equip my best duelling sidekick then just before it's defeated I switch to one I'm leveling up so it can get the experience. My question is if there is any evidence that suggests the sidekick you have equipped at the time you accept the rewards dictates the level of a sidekick you might receive?
Someone mentioned at some point that they should have equipped their higher level sidekick to get a better sidekick reward from the villain. Is that a thing or just a myth?