Like Rummy said leap heals you but blast finishers work as fine. When I use my Thief’s cluster bomb over Ranger’s water field (my favorite combination in the game, it can heal a whole party in very litle time spamming the cluster bomb) his pet and any NPC is healed. I think though that in the limit of 5 affected targets players have priority over NPCs so if the area is too populated maybe your pet won’t get the heal.
