A Game of Ice and Fire (Online)
To “skinchange” as a druid, a person performs a Ride check on a creature within range. The default range is 30 feet, and increases by 5 feet per druid level. The creature can resist the “skinchanger” by performing a Will save in response to the druid’s Ride check.
Unless noted, the “skinchanging” ability of the druid functions the same as the Pathfinder spell Beast Shape