abora are the bane of greedy adventurers everywhere. These carnivorous creatures appear to be tarnished worn coins with rough indents and raises upon their back that look like faded stampings. When awoken ten chitinous insect like legs extend out from their underside and pair of mandibles dripping with acid opens in the front Abora have no eyes or other discernable features these disk shape monstrosities have the color of gold, siliver and copper. They come in swarms of 2-200

I bulit this monster around atias game's fantasy bestiary 

here is the ISBN number if u wana check out the origanl one it is 1-58978-030-2