For Grima's role in the Finish the Story Series, read Grima (Finish the Story)

Grima is an evil dragon in the Fire Emblem Series. His most fleshed appearence is in Fire Emblem Awakening. He sends risen soldiers and him/herself to follow Lucina and company from the future to prevent them from changing events. Grima had actually in the time possessed Robin in that dark future, and chased the heroes in that form.