I hear buy a normal black chao rase it only with shadow teach it alot before it morfs and befor it morfs make it ware a skull and dont let it eat anything but dark fruit and win it a shovel it will morf to be a grim wreaper chao it will carry its shovel like a sieth [the thing the grim wreaper carrys] and if a chao is about to die he will follow that chao everyware untell it dies