The legends have been getting bigger and more grand in each Generation, but I honestly don't see how they could get bigger or grander.
In 3rd Gen, Groundon was the Power of Land and Kyogre the Power of the Sea. Presumably, they basically created the Earth. Rayquaza probably had something to do with the atmosphere.
Now, in 4th Gen, we have:
- Mesprit, Azelf, and Uxie, the Beings of Emotion, Willpower, and Intelligence, the source of the human soul.
- Giratina, who resides in a parallel dimension or something.
- Palkia, the Creator of Space, and Dialga, the Creator of Time.
- ARCEUS, who is the damn ORIGINAL ONE and was basically the Pokemon version of the Big Bang.
Honesty, I really want to see whether they can make a Legend that is better than the One that made the Ones that made Space and Time. It just doesn't seem possible.
Or will 5th Gen regress in Legendary power (at least storyline-wise, if not stat-wise) to something more realistic?