Battle Tower (Gen 4) FAQ

	Battle Tower FAQ:

Basic Definition: The Battle Tower is the general battle facility. You simply battle 7 trainers 3v3 to win a set, and nothing more.

Difficulty: 1st of 5 (Hardest)

Manipulation: The Battle Tower is the only of the 5 facilities that does NOT call on the Primary RNG to determine the trainers and Pokemon you fight. Instead, it uses the the same function that determines Swarms and changes to the Lottery ID (it doesn't really have a name, but I've been calling it the LID Frame because it's the easiest way to keep track of it).
What this basically means is that so long as the Lottery ID doesn't change, neither will the Pokemon order that appear at the Battle Tower. While this makes it incredibly easy to get predictable results, it makes it incredibly different to actually manipulate good results, as the only way to advance the LID is to have the clock strike midnight. And that only advances the LID Frame by 1, meaning you can't advance it by more than 1 every minute.
This is why the Battle Tower is the hardest facility to clear in terms of battles, because the fights themselves aren't nearly as desirable.