Okay, so, this is for the Seventh Sanctum "Monster Madness" contest. I used the Dark Minion generator, and got The Slashers of Tlorshab, so, this is what I interpret that as. A three armed dude with giant knives.
The way I see it, Slashers are golems, constructs, or homonculi. They're kept together by a soul in torment and elemental fire. Their third arm doesn't function, except for in combat, wherein it starts to slash and tear at the nearest living thing. Being that Slashers aren't technically alive, they don't count. So, there's nothing to say that they couldn't work together. In d20 rules, I'd estimate natural armor, maybe +10, str +4, dex +4, something similar. Construct traits. In d10 I'd say ignoring wound penalties, +1 str, dex, or stam, and no need to really breathe, so immunity to poisons of all kinds. Probably a speed bonus as well.
Anyways, that's my entry. Pencil first, then inkwell pen, probably around 3-4 hours. 110 lb/8.5X11" recycled paper. Fingers crossed.