Concept, idea is base to achieve success. especially when concept is good and it can be remade in professional work, almost creation of art. This is how Temporal ideas presented in Secret 1 and 2 concerning enemies, their look, features, character were created by Badu in form of concept works.
Reptile
very common enemy appearanting in three forms - normal, normal armed (in shield and sword) and royal, which means stronger and tougher. Thanks to that despite of being common creature it is very hard enemy.
Fourhanded enemy, one of the not numerous primevals still living and pacing over Secret lands. Apart from mighty strength and terrible look it can change attacked creature into stone, for long enough to defend it.
Ancient demon of speed, not many representants of this kind survivd Secret wars of Mages. But those which survived still have their high resistant to any physical attacks and their speed cause that their still are deathly effective assassins.
One of creatures created specially by Bhaal for destroying humanity. Fully resistant to fire, in half to physical efforts. Now withnout hampering influence of their lord can now evolve and be more murderous.
Well, what would be world withnout brave wariors? But are they knights in full armour or common mercenary wariors is not substantial. Each warior is equipped in suitable equipment, which is mainly armour and some weapon.
People which get known secrets of surrounding them world. They can control powers of fire, water, light and darkness. But beause on sacrificing part of themselves they can control only one sphere. But there are known cases of children of magic, which can control few magic spheres.