For this scenario, the BBC's Sherlock Holmes will join the side of the heroes in certain seasons of CW shows and will do all he can to solve the identity of the villain to allow the heroes to get the one-up. You can discuss seasons I haven't mentioned, but the ones below I think are the most interesting. His team will try to protect him. How will he heroes do as a result of his help? Can they end up taking a more solid win over the villains? He gets full access to the lives of the heroes and is allowed to meet people they meet and so on.

1. Arrow season one. Is he able to deduce the identity of the Dark Archer and stop the earthquake device in The Glades?


2. Arrow season two. Can question Oliver about who could be providing the Mirakuru. Can he save Moira?


3. The Flash season one. Starts right at the beginning before the Particle Accelerator goes off. Will he figure out "Harrison's" motivations? When Barry wakes from his coma will the team be able to outwit Eobard?


4. Arrow season five. He has to investigate the throwing star killer. Can he figure out all of Adrian's steps and get the upper hand?


5. Arrow season six. Has to find a way to stop Cayden James, possibly by proving Oliver's innocence? Can he do it and also figure out and stop Ricardo Diaz before he makes his power play?

Callouts:

@lubub55: I'm rewatching Arrow S1 right now (at a very slow pace) and I'm coming to appreciate Oliver's own deductive and investigative capabilities a lot more. I know that the writing in Sherlock is a lot more clever, but Oliver still has feats like casually playing the courts and the justice system in episode 5, in order to completely dispel any ideas of him being the vigilante before they even had the chance to come up, which showcased a lot of genre savviness on his part if you ask me.

The Royal Flush Gang robbed dozens of banks across the country, unfettered. They outsmarted the cops every single time, they were not even suspects, everything was going great. Oliver gives it his attention for a few hours and ends up identifying the whole family.

People say that Felicity took over as the intelligence of the team, but it's still Oliver always making the plans and calling the shots. Felicity isn't the one who tracks mob people down or figures out Prometheus's next move or whatever. It's always Oliver spouting some nonsensical investigative babble at her, and all she does is type it into the computer and read back the results. Oliver is clearly a genius if you ask me.

Oliver also has a lot of particular skills that allow him to investigate in ways Sherlock can not.

So even if Sherlock does better then Oliver, it won't be by much.

@the_hajduk: Sherlock isn't replacing Oliver here, he's an addition to the team.

Well then evil is screwed.

He casually outdoes Oliver in the intellectual/mental aspects of vigilantism, but falls short in the physical/martial aspects of vigilantism.

I'm pretty sure Sherlock could figure all of this out he has ridiculously inhuman deductive abilities like the stuff he figures out from the tiniest bit of evidence is outright ridiculous and makes no sense but he does it and is just beyond anyone in the Arrowverse in deductive capabilities imo. He could do all of this especially with the teams' help and resources like Felicity's computer skills.

@the_hajduk: Do you think they'd be able to foil Adrian's plans when he's done them so far in advance and so well? And could the second earthquake device could be prevented from going off?

Oliver pretty much foiled Prometheus on his own. Would it get done quicker? Probably. You can't just throw in a superpower like Sherlock Holmes and expect the exact same plan to go off exactly the same way. Really this scenario isn't fair to Adrian or any of the villains at all, realistically they would all at least alter their plans if they knew Sherlock Holmes was a factor.

@the_hajduk: Everything went according to Adrian's plan. Oliver certainly did not foil him. The only thing that didn't go for him was that the writers didn't stick with anything in season six, but I don't think that's the character's fault. And they have to adapt on the fly.

I never watched Sherlock, but I keep getting tagged in threads with him, and apparently he's pretty OP as a detective (to be expected). I think scenarios 3 and 4 are the only ones that would prove difficult, but I have nothing to go off of lol.

He passes all except maybe Reverse Flash. Given how careful and how brilliant Wells was, he might be able to outwit him. But he's the only one who even stands a chance.

I agree with monster and Flash is the only one I'm not sure about. When the particle accelerater goes off isn't the beginning. Thawne had already been here for years.

Sherlock probably accelerates the identification of most of these, especially since he has infinitely more recources to utilize than he did before. He can have Oliver or Barry investigate/collect just about anything they want, they're the ultimate field agents. He's got a tactical genius and a computer genius to collaborate with on Team Arrow, with multiple Scientific Geniuses to collaborate with on Team Flash. He can ask Felicity, Curtis, or Cisco to access any database. He can have Cisco/Caitlyn/Harry invent whole new technologies to facilitate his invetsigations. Basically, this setup doesn't just help the Heroes, it makes Sherlock even more of a beast than he already was.

R1: He can definitely solve Merlyn's identity. Oliver already had some great investigative feats in his own right, Sherlock is only gonna accelerate these developments. He can make some of the leaps Oliver did faster, then have Oliver facilitate the effects the same way he did without Sherlock.

R2: He definitely solves this, almost immediately. Even Oliver didn't have much doubt once he figured out Mirakuru was on the streets, I'm sure they identify Slade before he makes his appearence at the Queen Mansion. I don't think they can save Moira though, Slade has all the recources and intellect to find her, and Sherlock doesn't help at all with defending her.

R3: I think Sherlock can figure out Wells' motivations, especially with the same help from Cisco that Team Flash had. Although I don't think he can actually do anything about it, Eobard is even smarter than Sherlock, and has the means to kill him in the blink of an eye.

R4: I think he and Adrian would be pretty evenly matched, though I might have to give Adrian the edge here. His plot to manipulate the entire military to eventually dispatch Ragman was pretty god-tier.

R6: Sherlock can prove Oliver's innocence very quickly, he'll find the tape faster.

Ultimately, I think he clears every round except Wells and Adrian. Those two are just too smart and formidable.

Only Sherlock I watch is Elementary and I think he'd definitely speed up the process to figure all these out.

He would probably be helpful for every round here besides R3 because of Eobard is from the future and literally knows their every move.

Bump.