While in the Medic role the character's healing abilities are boosted, and the bonus extends to other party members in a lesser degree. The amount of bonus depends on the role level. File:Medic's Seal ach.PNG Medic is a primary role for Lightning, Vanille and Hope, and a secondary role for Snow, Sazh and Fang. The Medic's Seal achievement is earned after learning all the abilities and reaching level 5 for the Medic role of a single character. This can only be achieved after defeating the final boss to unlock Stage 10 of the Crystarium.