It still neat though. Now weak healing units can rescue important units. Question is: is the resque staff as rare as the physic staff? Or can you buy them in shops or forge them etc?
You can buy them in some stores, sometimes Anna apears in a location with rare or discounted items for you to buy. Also, they way the new system works is:
The unit A goes to the side of the unit B and uses Pair.
Now unit B is the main unit and unit A is the unit safe. The unit B get some stat bonus from unit A.
That means you cant send a unit to attack, and then try to Pair up to protect it.