Why didn’t anduin use his spells when he is a caster by nature? Why did he pull out his sword instead just cast his spells when the two mawsworn came after him?
He had just respecced to run a dungeon for the extra loot bag as prot and his mana bar was empty 
when he swapped back to holy after zoning out.
Obviously, the mawsworn were waiting for him in the overworld because they knew he couldn’t holy shock them away if he had no mana. Then they could get close enough to kick him.
He sort of forgot he was a Priest.
if he did that, Shadowlands wouldnt have happened, he would have defeated the mawsworn, jumped through the portal and Giovanni would have been denied his Pikachu.