Entropic Simple Template Graft
Entropic creatures are natives of one of the Outer Planes where chaos is paramount. A GM can allow creatures summoned with the summon creature spell that would normally have the astral, celestial, or fiendish simple template graft instead have the entropic simple template graft.
Alignment: Alignment changes to chaotic.
Traits: DR/lawful with a value equal to creature’s CR - 10 (minimum DR 1/lawful); if the creature already has DR of that value or greater, it instead gains resistance to acid with a value equal to creature’s CR - 5 (minimum acid resistance 1); when the creature is not on its home plane, it gains the extraplanar subtype.