Izsha is a zerg advisor in service to Sarah Kerrigan. She is a unique type of zerg, one of a kind. Izsha exemplifies a midpoint for Kerrigan, standing between Kerrigan's cold rationality and the feral nature of the Swarm. She harkens back to the ideology of the Overmind, but is still a rational individual. Among the zerg, Izsha occupies a similar role to that of a terran adjutant, assisting with navigation, logistical analysis and record-keeping. Izsha is physically grafted to Kerrigan's leviathan, where she filters through the ceaseless volume of sensory data that floods the Swarm with each passing moment.