These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: In order to resurrect Alaine, Asgar needs the blood of a human who slept with a vampire. So he finds Valnar. Why exactly couldn't he just sleep with a random human and use their blood? A throwaway line in Reign of Blood mentions that this human must also be in love with that vampire, but by Ancient Blood this doesn't seem to apply anymore.
Game Breaker: In the second game, Mirror is a spell that makes you immune to all but physical attacks and reflects all skills back to the attacker. It's balanced, as it's an expensive spell. But then there's a helmet which provides a permanent mirror state. If a character wears this in combination with another item that makes them immune to physical attacks, they become literally invincible.
Lawful Neutral: Alaine starts off the game this way, disapproving of Asgar's brutality but generally being content with what being a vampire means.
Player Punch: The Elras kill Ronak the Minotaur off and throw his head at your feet near the end of Ancient Blood.