Eyjafjalla Vulcan, often referred to simply as Eyjafjalla, is a prominent character in the mobile game Arknights. She is a powerful caster operator renowned for her devastating area-of-effect arts attacks. Despite her petite and unassuming appearance, Eyjafjalla commands great respect on the battlefield for her ability to harness the power of volcanic eruptions. In the story, she plays a critical role in the Rhodes Island team, where she uses her abilities to support her allies in their fight against the Infected and the various challenges they face in the dystopian world.