As Terran
Make:
Viking
Thor
GhostCorruptors are efficient only if they can reach valuable air.
Open in the counter tool with Corruptor tagged ->As Protoss
Make:
Archon
High Templar
Void RayStorm and Archons punish Corruptor dives.
Open in the counter tool with Corruptor tagged ->As Zerg
Make:
Hydralisk
Infestor
ViperFungal and Abduct control when Corruptors can commit.
Open in the counter tool with Corruptor tagged ->
Zergling
Baneling
Roach
Ravager
Queen
Lurker
Mutalisk
Overlord
Overseer