The encounter is called Arcane Idea Mechanics.
It will start with what can only be called a terror attack in a metropolis. Not quite sure of the nature, but it has to involve magically enhanced tech using villains. Like a
|Its a large sized mech suit for a medium pilot. Its weak enough to be in your every day campaign without being "TOO" mech-ish.|
Not sure what to add in between, maybe some RP or a chase/stealth bit, but eventually the team will come to the groups lair. Uniformed mages, again using magic fueled tech, will make up the bulk of the encounter. But the grand finally will be a beholder in some form of tech armor, maybe throw in some tiny magical arms to hold a gun or something.
Ooh, I found this picture just now. No mention of an accompanying campaign though.
The good thing about this adventure, the tech will be attuned to the goons., so players cant use it without the DM consenting and coming up with whatever prereq's he wants.