Razor swarm is a variant of the psionic storm ability utilized by Sarah Kerrigan in 2504 when Commander Jim Raynor, Dominion prince Valerian Mengsk, and General Horace Warfield led a combined Raiders and Dominion assault on the zerg planet of Char. Like psionic storm, razor swarm casts a storm of psionic energy that deals to damage enemies in a wide area.