To be honest, the best approach to EVO from a game designer's perspective is to select the pokemon first, and then define a proper concept or niche afterwards. Unfortunately, I'm afraid too many people in the community are under the impression that the last attempt at EVO failed because the pokemon was chosen first, and not due to the lack of a concept discussion afterwards. That's why I support the_arctic_one's proposal, because it's the closest I think we're going to get to that.
But now, I think, there's such a backlash to the previous EVO attempt that many feel it would be safer to simply apply what works in CAP to EVO, without realizing the two are completely different approaches to metagame balancing and expansion.
In any other game, the gameplay mechanic to be addressed is chosen first, with suitable concepts and niches developed afterwards. Not the other way around.
Hell, take one of my other favorite games, Team Fortress 2 (which is getting updates both this week and next...!). Valve didn't develop a concept first, and then try to shoehorn it into one of the classes. Instead, they pick whichever class they want to update, and then design new weapons and gameplay mechanics with that particular class in mind. I'm sure if they developed a brand new concept, it'd probably be applied to some potential 10th class in the future.
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On the other hand, selecting our concept first and then the Pokemon to evolve allows us to come up with an idea of what exactly we want our evolution's role to be in OU before anything else, and so we remained focused throughout the project. Our product Pokemon will have unknown affects on the metagame (as in, there is a learning experience) and the community will be selecting the base Pokemon that best fits our concept, hence we will not be making another CAP and it won't necessarily be a Farfetch'd or a Magikarp.
Beej, I think you want this to be CAP, not EVO. I won't reiterate my previous points.
However, if you want a learning experience, why make it the
exact same as CAP's? Is there nothing else we can learn about the metagame other than implementing "unknown effects", ala CAP? I know you probably didn't read my post in the other thread, but if you look at this from the right perspective, there is plenty to be learned from analyzing and revising broken gameplay mechanics.
Really, everything I read in your post made me think, "Why even have EVO?"
Everything you mentioned would have been better in CAP. Just even this -
There are hundreds of Pokemon that are viable for evolutions, and there is no feasible reason to believe that we're going to run out with suitable candidates for our concepts.
- shows that you're not looking at this from the perspective of making individual pokemon and their respective gameplay mechanics competitively relevant, but rather treating them as empty "slots" with which we can fit in CAPs in disguise.
I really do not see the value in refining existing Pokemon and simply making them better at what they already do. GameFreak has been softly mocked for evolving Dusclops into Dusknoir and Rhydon into Rhyperior because they seem to fit the exact same niches that they already occupied; they're just better at their jobs.
First, you don't need to use examples from GameFreak. They're the ones that created the pokemon in need of evolutions in the first place, so obviously not all of their designs are completely adequate or worthwhile. (That said, it's not like those evolutions were exactly unwelcome...)
Second, it's not simply a matter of "buffing". You don't make them "better at what they already do". It's about identifying the core idea behind a pokemon, its unique spot in the fabric of the pokemon gameplay system, and making it relevant to the OU tier. Sometimes, this requires an expansion on base mechanics, or perhaps completely new ideas to prevent it from being redundant with the role another pokemon already fulfills.
I dunno. I think I've said most of what I was going to say. I guess I'm just afraid that EVO will be tossed to the side after just a run or two with people saying, "Yeah, I knew it'd just be a more limited CAP."
*Insert something about expectations becoming reality here.*