The species called "Savidicus Daemon" or the "Silver-Tongued Demon", mastered the art of creating portals to shift between different dimensions perfectly. It's unclear how it can create those portals and where the energy for that comes from, but it is assumed that large amount of energy can be stored in the claws on its back, that's why they emitting a slight glow all the time.
Being highly intelligent, but abysmally evil at the same time, this creature causes chaos and war wherever it appears. It can communicate directly to the mind of its prey, driving them mad or giving them false hope by promising them giving what they most desire in exchange for something they need to do.