Heart of the Swarm Complete List of Changes

The following is a complete changelog of multiplayer changes for Heart of the Swarm. This is a good reference to understand what has changed from Wings of Liberty.

PROTOSS

  • Carrier
    • Interceptors can now change targets when they are in leash range.
  • Dark Shrine
    • The cost is now 150/150, down from 100/250.
  • Mothership
    • Recall teleports the Mothership and all nearby units owned by the player to the targeted Nexus.
    • The Vortex ability has been removed from the game.
    • New Ability: Time Warp.
      • Creates a temporal field that slows all ground units’ movement speed within a 3.5 radius by 50%.
      • This ability costs 75 energy to cast
      • This ability can be cast from 9 range.
  • (Wiki)Mothership Core
  • (Wiki)Oracle
  • Phoenix
    • Range increased from 4 to 5. Upgrade still grants +2 range.
  • Pylon
    • Warp-in on ramps downhill is now allowed. Warp-in to the high ground is not possible anymore.
  • Sentry
    • Hallucination no longer requires research.
  • Stalker
    • Blink research time increased from 140 to 170 seconds.
  • (Wiki)Tempest (unit)
  • Void Ray
    • Prismatic Beam
      • No longer charges up.
      • Weapon period decreased from 0.6 to 0.5.
      • No longer does passive +massive damage.
    • New Ability: Prismatic Alignment
      • Increases damage to armored units by 6 for 20 seconds, with a 1 minute cooldown. This does not scale with upgrades.
      • Activating the ability now causes a timer to display over the Void Ray for the duration of the effect.
    • Supply cost increased from 3 to 4.

TERRAN
  • Armory
    • The Armory now only has one armor upgrade for both air and ground upgrades for both Factory and Starport units.
  • Battlecruiser
    • Yamato Cannon energy cost decreased from 125 to 100.
  • (Wiki)Hellbat
  • Medivac
    • New ability: Ignite Afterburners
      • Speed boost that increases movement speed and acceleration to 4.25 for 8 seconds. 20 second cooldown.
  • Raven
    • Seeker Missile has been redesigned:
      • Energy cost decreased from 125 to 75.
      • Can now fire from 10 range.
      • Missile comes out and stays immobile in front of the Raven for 5 seconds while charging up, then rapidly moves and explodes at the target for 100 damage plus splash damage.
      • Targeted unit lights up red when targeted. If the unit moves 13 range out of where the Seeker Missile is, the Missile fizzles.
  • Reaper
    • New passive ability: Combat Drugs
      • Health regenerates 2hp/s if not attacked during the last 10 seconds (same as Protoss shields)
    • Health increased from 50 to 60.
    • Movement speed increased from 2.95 to 3.75.
    • No longer requires a Tech Lab Addon.
    • No longer have their anti-building grenades.
    • P-45 Gauss Pistol weapon damage decreased from 4 +5 vs. Light to 4.
  • Siege Tank
    • Siege Tanks no longer require an upgrade in order to enter Siege Mode.
  • Thor
    • 250mm Strike Cannons has been removed, along with its associated energy bar.
    • The Thor can now switch between two modes: High-Impact Payload and Explosive Payload. The mode shift takes 4 seconds.
    • When in High-Impact Payload mode, the Thor switches to a different anti-air gun (250mm Punisher Cannons) that has 10 range and deals 24 flat damage.
    • Thor radius, inner radius, and separation radius increased from 0.8215 to 1.
  • (Wiki)Widow Mine

ZERG
  • Creep Tumor
    • No longer spawn instantly, but instead have a three second spawning animation.
    • May now be placed on ramps.
  • Hatchery
    • The Evolve Burrow upgrade requirement has been moved to the Hatchery.
  • Hydralisk
    • New Upgrade: Muscular Augments
      • Increases hydralisk off-creep speed from 2.25 to 2.81. Speed on creep unchanged (3.37)
  • Infestor
    • Fungal Growth:
      • Is now a projectile.
      • Speed of the projectile is 15.
      • Range up to 10.
      • Damage decreased from 30 +10 vs. Armored to 30.
  • Mutalisk
    • Speed increased from 3.75 to 4. Acceleration stays at 3.5.
    • New passive ability: Tissue Regeneration
      • Mutalisk health regeneration rate increased from .2734 to 1
  • Spine Crawler
    • This unit now completely blocks pathing when placed next to other structures, including other Spine Crawlers.
      • Zerglings and other small units can no longer squeeze in between Spine Crawlers.
    • The scale of this unit has been increased from 0.85 to 0.95.
  • Spore Crawler
    • This unit no longer requires an Evolution Chamber.
  • (Wiki)Swarm Host
  • Ultralisk
    • Damage changed from 15+20 armored to 35 flat damage.
  • (Wiki)Viper