Pixelmon Mod

In Sun&Moon games, the mystery gift Ash-Greninja (the only way to obtain it) has a set IV spread of 20/31/20/31/20/31. In Pixelmon, wild caught Ash-Greninja have purely random IVs. However, since it cannot be bred, there is no way to improve these IVs. I would like to see either this guaranteed spread applied to Pixelmon Ash-Greninja spawns or perhaps simply 3 random perfect IVs given as with other unbreedables (legendary and Ultra Beast spawns.)