Park your ship between the ship healing and the ship being healed, or kill the healer. Purg, drain, distrupt, all are counters to healing.
did you read his post?
He talks about 2-3 healers and you say park inbetween the healer and the target? Just split in 3 ships?
Or kill the healer - yeah right, what a hint - all 3 healers at the same time of course, so easy ...
just a pointless comment