Kirin
About
It appears when a just ruler is born and when one dies, and at no other time anyone has been able to predict. It walks without bending the grass and without disturbing a single living thing underfoot, and it has never in any account initiated violence. It will not eat meat. It will not tread on an insect. Meeting one is not a danger and never has been, and everything that has ever gone wrong in its presence has been done by the people who met it.
Stats
Save Rolls
Traits
Special Attack
It never initiates violence and never harms an innocent. Hooves of Fire: bludgeoning, melee 10 ft, +6 to hit, 3d8+5, used only against a creature that has already struck at it or at somebody weaker than itself, and used to disarm, unhorse or break a weapon rather than to kill.
Special Defense
Harms No Innocent: it will not damage a creature that has not offered violence, under any circumstance, including its own destruction. Walks Without Weight: it cannot be tracked, trapped, cornered, netted or enclosed, and nothing it steps on is disturbed. The Sin Is Yours: reduced to 0 HP it does not fight back and it does not flee - it stands, and it looks at whoever did it, and it dies. Every creature that took part is Weary until it has done something to answer for it, and the DN should be exacting about what qualifies.