Elite Hieracosphinx (PFS 3-14)

DC 25 reflex Most monsters that serve as mounts can attempt to buck off unwanted or annoying riders, but most mounts will not use this reaction against a trusted creature unless the mounts are spooked or mistreated. Trigger A creature Mounts or uses the Command an Animal action while riding the monster. Effect The triggering creature must succeed at a Reflex saving throw against the listed DC or fall off the creature and land Prone. If the save is a critical failure, the triggering creature also takes 1d6 bludgeoning damage in addition to the normal damage for the fall.

A hieracosphinx has an innate magical defense similar to a Contingency. When they take a specific type of electricity damage, they can use their reaction to have the glyph cast Haste on them. The glyph is then dormant for 1 week. A critical success to Recall Knowledge about a particular hieracosphinx (30 or higher on the check) reveals which damage type triggers the glyph.

The hieracosphinx Strides and makes a Strike at the end of that movement. If they began this action Hidden, they remain hidden until after the attack.

The hieracosphinx emits a shrill, ear-piercing shriek. Each non-sphinx in a 60-foot emanation must attempt a DC 22 fortitude save. Any creature that attempts a save is temporarily immune for 24 hours. Critical Success The creature is temporarily immune to that hieracosphinx's shriek for 24 hours. Success The creature is Deafened for 1 round. Failure The creature is deafened for 1 minute and Stunned 1.