Sphinxes, sometimes given a proper name as a Phix, are horrid and powerful creatures. Similar creatures appear in many mythologies through out Europe, the Middle-East, and Asia, although it was named by the Greeks, whose myth seems a proper depiction, although the thing is not a god nor is it a single being, but like fae and dragons and djinn is a type. The lion headed depictions of the Egyptians may not have been depictions of the Sphinx at all, but rather depictions of their ruling class being associative with Sehkmet.
A Sphinx would often times be used as a guardian. The creatures are naturally guardians, tend to stay in one place, and are strong enough to make good guardians of things, especially tombs and other places where folks and animals don’t normally go. They also may be associative with power in the Greek magickal traditions. Mastery of a Sphinx, as per the feat of Oedipus, would be something only a very powerful magician would be capable of, and as such Sphinxes could be seen as guardians of the sacred mysteries, only allowing access to those of such great power as to tame them.
For the most part, Sphinxes are no longer allowed into this world. Fortunately the current laws and rules surrounding this plane of existence bar them from coming here. They can’t even reach the realm of dreams, for the most part, without great effort on their part, and it’s very difficult for them to sustain a presence there for long.
Sphinxes come from the depths of the hell planes. They are a lower realm equivalent to a realm guardian, essentially a type of angel to that place, however they would exceed even an archangel’s power, at least in their realm of origin, and would be somewhat equivelent to the angelic energy bodies of the heavenly planes.
I would assume that, when encountered in higher planes, a good deal of their energy and power is devoted to just sustaining their presence, and within their own realm of origin they would be far more powerful, although it is also possible that the ones able to still reach higher realms like the dreaming are also the more powerful of their ilk, and that most in their natural realm of origin are much weaker (I’ve never seen one in its realm of origin, and I don’t think I want to either).
A Sphinx constantly masturbates, sort of. It doesn’t really play with itself, it just sort of orgasms and ejaculates again and again on a constant (granted I’ve only seen males, females, if they exist, may be a bit different). When it orgasms, very strong sexually predatory energy flows out of it and into the nearby area in waves. Anything that is not able to quickly produce a very strong psychic shield (which even among practitioners, many can’t) will be raped by it. And the rape will happen repeatedly until the creature becomes so worn out from it that it kills them. Small creatures tend to last seconds. Larger creatures like cats and dogs may get a minute or two, a human maybe a few minutes. Even with a strong shield the energy is so intense, and on a constant, that it will tear down the shield very quickly.
This masturbation is not an attack, it lacks any direction or purpose, it is just a side-effect of the Sphinx existing in a place. It only represents a fraction of the Sphinxes power. The Sphinx overflows with power, it drips off it, so much so it can be clearly seen as a beacon amidst it’s sexual waves, and is many times stronger than it’s masturbation, even when the Sphinx is calm and at ease.
The energy of the Sphinx is such that most will find it offensive and gross, and also completely horrifying. Not just the nature of it’s evil, but also the power and intensity behind it. Among angelics and those with an angelic connection it will most likely awaken a primal need to combat and expel it, although most angelics even will approach such a beast with caution.
The Sphinx originates in the Qlippothic version of the middle triad, and as such is a further physical complication from this plane, and so he has a physicality that is evolved beyond what is typically allowed into this world. He also has a realm guardian status, so we can presume that, like the realm guardians of this world, he may be atypical of his plane of existence in his manifestation of physicality and the laws that apply to him.
Also, like any realm guardian, he guards, ferociously and viciously, and is a natural warrior. I’m not sure the actual intelligence of such a beast, as I’ve never attempted to talk to one. Their energy does seem very violent and animalistic, but this is not rare among realm guardian types. It would be odd, even among a realm as low as his, for something to be of such vast power and lack intelligence.