[spoiler]This is a... sorta time shenaniganned sudden idea of injecting something into the past, we had with Bittersweet. Technically, it takes place in the past shortly after the whole Eskay-Sarah thing. Film at eleven.
Somewhere near Ecruteak, $AMBIGUOUS_NUMBER weeks ago
At a forest clearing, a couple of small groups of Pokémon are gathering. Each group comes from a different direction in Johto, but they all have something in common...
An Ursaring and a Miltank leading their respective groups, as newcomers, are having a bit of a hard time with the formality of the situation; each of them is approaching it their own way.
Ursaring from the North: <Wow... this is a... long time since we haven't been around here.> He looks around cautiously, not used to the surroundings.
Miltank from the West: <We were sent here as soon as we heard the news!> Prods the Ursaring -- <You should relax! This will be a good time!>
A Weepinbell and a Nidorino leading their respective groups are at ease in their places, and observe the other Pokémon.
Nidorino from the South who is totally not Hamada: <Our elders were most pleased. It's been a time since a summons of this kind was invoked.>
Weepinbell from the East: <That's right...> -- looks the Nidorino up down -- <I don't remember you at least, nor do I the Ursaring.>
Ursaring -fumbles: <...Uhm... it's my first time out of the northern thicks.> -- looks around -- <Anyone wanna fight? I-I could use a fight...>
Weepinbell: <What I want to know is why are we summoned here and not to the summit.>
At this the four leading Pokémon turn their eyes to the huge man-made structure that can be seen near the city. The one atop which their elder Legendary roosts, when he feels like it.
Nidorino -sighs: <Last summons I recall, there were some issues because a human was summoned too and he had to offer a machine of some kind to the priests to get to the Summit.>
Ursaring -frowns: <...Wha? I mean, what for? We could just->
The other Pokémon look at him...
Ursaring: <-go tell them we were summoned, ya know? We'd just need a translator.>
The other Pokémon still look at him...
Ursaring -coughs: <...Were you all thinking that I wanted to, what, bust my way in? Into sacred grounds?>
Weepinbell: <In my defense, except for the Miltank over there we can't really appeal to our cuteness.>
The Nidorino and Ursaring groan and then engage in more conversation about the call they got to meet in the grounds for a [notice] by Ho-Oh...
.
“Thou hast forgotten the face of thy Lord. Remember, mortal, and fear pet me.”