The Hellbat takes another strike from the nerf bat in this latest HotS Beta Balance Update. Citing it's ability to quickly turn map control into a strong push, Blizzard have today instituted a change that reimplements the transformation servos upgrade which are once again a requirement to turn Hellions into Hellbats.
Quote:
Hellion
Transformation to and from Hellbat Mode now requires the Transformation Servos upgrade from the Factory Tech Lab.
Transformation Servos requires an Armory and costs 150/150, with a 110 second research time.
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