[Updated] Nightsister rare loot chance

Change-Id: I1b48f2686f8a2cc4e43048992c6ba3a9a540e9c8
[Fixed] Typo in flawless krayt pearl force cost

Change-Id: I721ac35fa5b985b6fccda06a3a23d8e183dc8ab8
Merge "[Updated] Nightsister rare loot chance" into unstable
Merge "[Fixed] Typo in flawless krayt pearl force cost" into unstable