In Raven form, Familiar Spirits tend to average about 24 inches in length, have a 48 inch wingspan and weigh about 3 lbs. Ravens can fly at a minimum speed of twice the listed movement rate given in the stat block. Ravens have extremely keen eyesight, gaining a +5 modifier to their Perception skill rolls. Ravens are also the only Familiar Spirit who can communicate verbally with their bonded spell caster or others who are friends of their bonded spell caster. Ravens grant their bonded spell casters a +2 modifier to Will Saves and to Magecraft skill rolls.