Sarah Kerrigan (Heart of the Swarm)

Sarah Kerrigan is the primary hero unit of the StarCraft II: Heart of the Swarm campaign.

In Heart of the Swarm, the campaign operates similarly to an RPG, in which Kerrigan is focused on increasing her personal power through mutations. Zerg armies protect her as she garners this power. The greater her power, the more zerg she's able to control. Kerrigan will lead from the front; she can die and "respawn" endless times at a hatchery.

Kerrigan can increase various aspects of herself, such as "spec-op" and "corruption", and through the Battle Focus mechanic, can shift these priorities between missions. Using one aspect will allow upgrades for all of them, enabling players to "sway" between them, even if it's only to maximize one of the strands. She will not have access to the psionic storm ability during the game.

Kerrigan can also increase her health, damage, armor and energy through upgrades unlocked by completing bonus objectives.

Kerrigan will have four skill sets, although not all had been developed as of May 2011. Other potential skill sets revolve around defenses, comboing with air units, stealth and "roach-burrow supporting Kerrigan".

Kerrigan's abilities can be reverted and switched.

Kerrigan can reach a maximum of 60th-level.

She initially appears very human, and is armed with a rifle.

Upgrades
Kerrigan's abilities are divided along the lines of "Corruption" and "Spec-Ops." These two types of abilities tap into her zerg and ghost aspects respectively.

Corruption Corruption gives +3 armor.

Spec-Op Spec-Op gives +50 energy.

Destruction One of the destruction abilities gives Kerrigan the Crushing Grip ability, which stuns enemies in the area of effect for 3 seconds and inflicts 15 damage over that time.

Psi Bolt This is an ability that allows Kerrigan to shoot out bolts of lightning instead of using a gun.