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Chapter 7: Spells

Hostile Actions

Source Player Core pg. 303
Sometimes spells prevent a target from using hostile actions, or the spell ends if a creature uses any hostile actions. A hostile action is one that can harm or damage another creature, whether directly or indirectly, but not one that a creature is unaware could cause harm. For instance, casting fireball into a crowd would be a hostile action, but opening a door and accidentally freeing a horrible monster wouldn’t be. The GM is the final arbitrator of what is a hostile action.