Oh yah, there's a really weird build, kinda less popular (kinda = way) than others. It's called something like a "Pimpsin". The premise is to have as many buddies around as possible. You cast a Shadow Master, use the Zon armor to get yourself a Valk, and, before 1.11B ruled it out, put the Valk armor on your Merc too, for a total of 2 valks, 2 Assassins, 1 Merc. That'd be a small party all by your lonesome. Now, of course, it's kinda moot since Mercs don't have a chance to proc Summons anymore...it used to crash the game...