You get an ability in each chapter except the first one. The abilities you gain depend on your reputation... SPOILER:
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- CHAPTERS 2-3 -> Cure light wounds (Good rep), Larloch´s minor drain (evil rep)
CHAPTERS 4-5 -> Slow poison (Good rep), Ghoul´s touch (evil rep)
CHAPTERS 6-7 -> Draw upon holy might (Good rep), Vampiric touch (evil rep)
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"I miss the Angel... and I mean that I REALLY miss her" -Ertai, Captive of the Blinding Angel