It probably helps that he's Flash's nephew so he'd know exactly what to do.
He is a scientific prodigy shenanigans aside, and its not to hard to believe he'd try to become a hero following in his uncle's footsteps. Wally's the incarnation of the Flash I have the most experience with so I'm glad to have him as a part of the series.
Despite the lack of Robin's word of the day I thought the latest episode was great. Consider me whelmed. Really fleshed out KF's character, and I like the love hate thing he has going with Artemis.
Didn't know much about Dr Fate except the few appearances he had in Justice League so it was nice to see what the character is all about this episode. If he was that powerful inside a host body completely averse to magic and I can only imagine how powerful he'd be in one which wholeheartedly believed in it. He needs to crossover into Fairy Tail.