The Sunil civilisation was neither the strongest nor the weakest species. However, based on the fact that they were able to have a foothold on the centre of the planet, they couldn't be underestimated, and were more or less amongst the top forces.
According to researchers, the Sunil civilisation couldn't be described as a science or magic civilisation to be exact; all their development seemed like a mixture of both and was aimed towards the mind rather than the body. Because of this, the Sunils had a weak body compared to the other intelligent species. To cover up for their weakness, they had created special warriors with tough bodies and impressive fighting abilities.