Radius deliveries include traps, contact poisons, and monster abilities such as eye contact or sound of voice. Usually a Hold is called when a radius attack takes place and everyone partially within the radius is affected. Note that (just like with all attacks) Radius delivery effects should always include an explicit Qualifier and Effect. If no Qualifier is stated, assume the Spell qualifier is being used.
For Example: An adventuring party encounters a terrifying Banshee! She draws a deep breath and then shouts “Voice Spell Paralysis!” If any of the adventurers who hear her do not have a valid defense to call against this attack, they will be frozen in their tracks!