Grand Magister Jurek:
If you slay Valakas, Antharas, Scarlet van Halisha, Ember or Anakazel, you can obtain a level 13 Soul Crystal. But it will not be easy to successfully absorb the souls of Ember and Anakazel.
If you slay Scarlet van Halisha, Balor, Antharas or Valakas, you can obtain Soul Crystals as high as level 14. But where Balor is concerned, that's easier said than done!
If you slay Valakas, Antharas, Beleth, Scarlet van Halisha, Ekimus or Tiat, you can obtain Soul Crystals as high as level 15 or 16.
For your information...
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