When using Rough Seas, can I choose to heal only some of my {W} and {L} Pokemon or do I have to heal all of them?
If you choose to use Rough Seas you must heal all {W} or {L} Pokemon with damage counters on them.
Source: TPCi Rules Team (2017-05-18)

Relevant cards

Note: All applicable cards may not be listed below.
XY5_137