You can always pre-cast an adloquium on the tank before they take off running into a horde of mobs, it'll shave off some of the damage from auto-attacks while they run to the next group of enemies. Now with that being said, only 3 of Scholar's heals have any sort of cast time attached to them, and you'll generally want to avoid using Physick like the plague. Instead, what you want to do is utilize your off global heals first and foremost along with your Fairy's abilities.