* some rare and valuable potions can give long term Buffs (example : Memory Enhancer gives an hour of +10% earned combat XP)

* Meditation or Calligraphy can give an hour Buff (or multiple hours when using a Meditation Stool or a Calligraphy Bench from [[Carpentry]] ). These Buffs enable that certain combination of combat abilities have extra effects (example: restore health or do extra damage)