what is a Celeste? it's hard to say because like Ben ten they come in every shape and size. Touched are typically lumped in with the Celeste as well.
A Celeste can not be shattered according to the rules in the game book. only sterling can become dead inside. a Celeste has at least 10 soul pieces
the game book doesn't mention purebreed celest but it does have other havy hybred celeste including dual wing kind. "To give you a hint, though, two modern Celeste breeding (or even a Celeste that sticks to the same species) still doesn't produce a purebred. In fact, that's pretty much necessary to produce a dual-wing like Gabriel or Veled." jigsaw