Kerrigan is a powerful unit; she has high HP, good armor, and deals massive damage with her normal attacks. With Ensnare and Psionic Storm she can support the player's forces against large numbers of enemies, and can Cloak to scout out enemies and attack vulnerable points. Her major weakness is her inability to attack air units, and heavy-hitting units like reavers can quickly deplete her HP.
Inflicts 112 damage to all units within a target area over seven seconds. The storm does not harm structures or units within bunkers. Psionic storm ignores armor and armor types. Only one storm may affect an area at a time; overlapping storms does not increase damage output.