The asari are a fictional extraterrestrial humanoid species in the Mass Effect multimedia franchise developed by BioWare and published by Electronic Arts. First introduced in the 2007 novel Mass Effect: Revelation, the asari are a sapient homeotherm species who are naturally inclined towards biotics, the ability to manipulate dark energy and alter the mass of objects through the use of electrical impulses from the brain, which produce various psychic abilities such as telekinesis.