There are a few small balance changes being implemented into Wings of Liberty, making changes to the Raven and Infestor. The changes are as follows:
Terran
- Upgrade requirement removed for Raven seeker missile.
Zerg
- Infested Terran eggs health down from 100 to 70
- Fungal Growth range down from 9 to 8
For the full post, click here.
Source:
Battle.net - Wings of Liberty Balance Update: December 4, 2012
