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That just blew my mind.
That is the most ingenious thing ever. When you're going through large caves where nothing but Zubats normally appear, you'd no longer get bored out of your skull; you'd say "Oh! An ice Zubat! I need to catch one of those!" Pokemon would involve much more strategy in picking the Pokemon, and it would be harder to get bored. There would be nearly infinite possibilities.
This would pose sort of a problem with legendaries, though; you could reset to get the type/resistance you want, but what if you change your mind later? In order to get every possibility, or more than 3 or 4, you'd have to replay the game or get a second copy. Which actually wouldn't be bad, because most Pokemaniacs do that anyways (I did with D/P, would probably do it here, too, especially since it encourages you more).
So the only problem I see with this is how they'd fit all of the sprites into the game.
Seriously, they should be hiring you to work on the next Pokemon game. Your ideas are great.
Haha, thanks man! I really appreciate it!
I did not think about the legendaries while typing that, so you have brought up a very great point. In my view, Legendaries should be so much more than what they have been in the game. Take this in for a second -- Dialga and Palkia have pretty much been in existence for as long as.... well,
ever. Dialga pretty much governs the element of time, while Palkia governs space. Without the two, nothing could exist. So what would happen if you were to indefinitely
kill one of them? I'm sure your imagination could figure it out. But why then, are we allowed to capture those Pokemon? By capturing them, we are now the wielders of both time and space, and therefore, we pretty much rule the entire universe. One word..
No.
A legendary Pokemon is a Pokemon like Mewtwo - it is very powerful, but in no way is it tied to the core elements of existence. Capturing it would have no negative effect on the world. But such a creature as Mewtwo is so vicious that it obliterated the laboratory that it was created in - taking with it the scientists that created it. Mewtwo is far more intelligent that any human being. Why then would it merely fight the Pokemon you send at it, rather than just kill you? Mewtwo does not want to be in a Pokeball because Mewtwo hates all humans. Why fight your Pokemon when it can fight you -- or better yet, KILL you? I do not approve of the lack of importance that legendaries sport in the games. They are not legendary Pokemon, they are just really hard-to-catch, one-of-a-kind Pokemon. Out of all of the trainers in the entire world, how can a 10-year old catch the most powerful Pokemon in the world? Again...
NO!
Now, to really answer your question -- I think the whole "legendary" thing needs a complete overhaul. I mean think about it. You know the legendary is there, and it's big and bad and nasty all over the place and you really want it. So you battle it, and you catch it. Now you have it, and now it's not exciting anymore, because you have a legendary Pokemon and no one else does, and you've stolen it from its grand lair, watching over the world. It's like you're stealing a piece of the world itself. Which brings me to my next point (sorry, I'll directly answer you in a bit, Firus) -- all Pokemon are created to represent different elements of life through creature-like forms that we can associate with.
I mean, look at the types of Pokemon: we have grass, fire, water, electric, ground, rock, psychic, ice, steel, etc, etc. These are all common (yes, Psychic is merely just a representation of mindpower, it's as common as any of the others) elements that make up the world that we live in (with the exception of bug, dragon, ghost, and flying - being directly related to the actual being itself rather than an element that our world is made of; otherwise, "dog" would be a valid type, and that's a no-no). Now, Legendaries usually encompass grander elements of life - such as the aforementioned 'Space', and 'Time'. These two elements are not Pokemon types, but two legendary Pokemon represent them. All Pokemon are metaphoric for our world, and capturing them - in essence - is taking a piece of our world and using it to further ourselves. Of course, this kind of contradicts what I said earlier about what would happen if you killed Dialga and Palkia, but in the context that the games have put them in, it seems applicable.
NOW, to answer your question about what should be done about the legendaries. Since I have gotten all of that weight off of my belt, I hope you have at least taken in some of what I said in the past... four paragraphs (wow..). Regarding the types of the legendaries, I think that they should have the same type for most games, but rarely, they may change types and/or appearance. The variation is being introduced so that common, wild Pokemon will not appear the same over, and over, and over, and over [redundancy to the max]. Legendaries will only appear once, but that does not mean that they should
always be the same. To add some spice to the legendaries, they may be different when you encounter them, but how they appear is how they will always appear for the remainder of the game (Entei, Raikou, and Suicune will always look the way they did when you first encounter them). This goes for types too, of course.
Now to bring up another point regarding the type-altering between individuals of one species of Pokemon. On very rare occasions however, the type (and this goes for all Pokemon) may be completely different from its common-type. For instance, you may find a water Magmar (essentially a Golduck due to similarities in appearance). This Magmar would not sport the flame-patterns on its body, but may have bubbles (reminiscent of Azumarrill) and be entire blue in hue. Now, you will not find a water Magmar in the Cinnabar Island mansion, but you may in a water-based cave. Because Magmar is a Pokemon with very high-temperature, this trait would carry on to its water-based cousin, and therefore, would make it susceptible to ice-attacks (while a normal Magmar would be strong against ice Pokemon) AND may have a resistance to grass-attacks, since its temperature is high, and therefore shares some traits with fire-types. This adds for extreme diversity in battle as you may not know what type the Pokemon actually is. However, you must remember that these type of Pokemon are very, very rare (not as rare as a shiny though) and if you were to encounter one, you better catch it.
Anyways, I would love to discuss the new type-system more with you guys. I'll do my best to ask any questions at all.
But i think we could've done without such high level hard-to-get pokemon staring us in the face whenever you entered a cave. Bronzong and Abomasnow could've been a whole lot cooler.
you do not want to know what hackers would do with this ..... ZoMg! A dragon/ice diagla thats coloured bluish purple showing its resistant to dragon types! That would be just one of the possibilitys plus for people who truley want to catch them all they would have to get about 30000 pokemon counting the diffrent variations. As for your idea of diffrent water types in another post im going to have to say that that would be a bit over doing it. That would only lead to diffrent type of ghost pokemon like holy and evil then thin ice and hard ice pokemon, rock and boulder etc. That would about double the types causing it to be harder to remember which type is good on which. 
