Faerie Fire 的作用范围类型是 burst
A burst spell affects whatever it catches in its area, even including creatures that you can’t see. It can’t affect creatures with total cover from its point of origin (in other words, its effects don’t extend around corners). The default shape for a burst effect is a sphere, but some burst spells are specifically described as cone-shaped. A burst’s area defines how far from the point of origin the spell’s effect extends.
Glitterdust 的作用范围类型是 spread
A spread spell spreads out like a burst but can turn corners. You select the point of origin, and the spell spreads out a given distance in all directions. Figure the area the spell effect fills by taking into account any turns the spell effect takes.
这两种法术都是一瞬间起作用的，此后影响范围并不会持续存在。它们的 duration 只是针对加到目标身上的效果而言。
