Your Corruptors have a small area of effect in their attack, so you can actually heal multiple units with 1 Corruptor, as long as you have them positioned properly.

• 你的腐蚀者的攻击是有一小块范围的，所以你可以精准地用1个腐蚀者治疗多个单位，只要你把她们的位置安置合理。