Centered on Giants

The rules for many character options in the Pathfinder RPG Core Rulebook and other Pathfinder RPG products often assume that creatures are Medium or Small. In the case of a handful of spells with areas that feature a “radius emanation centered on you” such as antimagic field, aura of doomUM, and zone of silence, as well as some of the spells presented in this section, this can result in an area that is effectively useless when coming from a Large or larger caster. As an optional rule (and one that is recommended if you are running this Adventure Path), when a creature casts an emanation or burst spell with the text “centered on you,” treat the creature’s entire space as the spell’s point of origin, and measure the spell’s area or effect from the edge of the creature’s space. For instance, an antimagic field cast by a fire giant would extend 10 feet beyond his space (effectively increasing the emanation’s radius by 5 feet).