Actually, it's more like something magically showing up to solve a problem. As in, when all hope is lost, somebody plows through and kills the enemy. It's rather sloppy and lazy.
Compressing that into four words: "Aim for the horn." :P But yeah, "Deus ex machina" refers to the antique plays where the big conflict was always solved by the miraculous (and completely illogical) intervention of a god (Played by a machine, hence Deus Ex Machina); it's basically an absurd, divine intervention type solution to any given conflict, within this fandom it's usually in the form of a pokémon who suddenly goes ridiculously powerful and KOs everything for no particular reason (*Cough* Pikachu *Cough*).
Anyways, Glajummy; could you please try not to use my examples for the sake of arguing a point I personally oppose? The way you put it you made it sound like one of the "Yay, it's a random fakemon with completely uncharted abilities, whopee!" people.
I'm not, so please don't paraphrase me in way that makes it seem like I am. <.< I'm one of the people who believe in setting clear rules for what pokémon can and can't do, so the undefined, fuzzy statlines and movepools of fakemon are not something I'm fond of. Plus, most of them just seem so...redundant. T_T Like Jax Malcolm said, it shouldn't be fakemon just for the sake of fakemon.
Also, if you think everything among the 493 pokémon out there is predictable you should seriously do some competitive pokémon battling. Even within the framework of the real game mechanics there are countless strategies involving the most bizarre results (Like how a level 1 Phanphy backed by a sandstorm can beat the ugly out of a level 100 Arceus (And no, this isn't something lame like 'Arceus has no attacking moves', or 'Phanphy is hacked, lulz')) and although not everything of that is as feasible within the realm of fanfiction, there are countless other possibilities because you can apply creative use of moves (the pokémon manga is a pretty good example of this) and the setting itself and the personalities of the pokémon involved play their role in the outcome of the battle (E.g. cramped spaces are obviously a disadvantage for big pokémon who need a lot room to move while water pokémon obviously have the edge if it's an aquatic battle, a Bastiodon with a temper could throw all caution to the winds and try to charge despite, technically, being a defensive pokémon etc.). If nothing innovative can be made from all of this, then the fault lies with the author; not the franchise. Fakemon are all too often used by authors simply because they're too lazy to come up with something really original (Thus relying on a hastily slapped-together set of made-up critters who they can point at and say "Hey! I have my own fakemon so this story is as innovative as can be!"). It's like...some of them seem to think that throwing in a few jack-in-the-box species can somehow make up for the lack of a proper plot and setting. :\
Much the same seems to happen with pictures, hence why I'm not that big on them either. People have a tendency to think that since they provided a picture it somehow exempts them from giving a proper description in writing. (This is particularly annoying in RPing, where you even get freakin'
sprites at times. I mean, how the flip am I supposed to make my character respond to that? "Oh, look; Gary stole Lance's cape and got himself a bad dye job! =O") Usually, the more pictures and other visuals (Colored fonts etc.) there are the less attention tends to have been paid to the actual
content of the story, which is annoying since it's the writing I'm here for. If I wanted sprites or manga pictures, I'd be at the Art Gallery section.
But you know...that might just be negative RPing experiences talking. :3