Quote Originally Posted by Tanarii View Post
You keep saying frightened protects your allies from attacks and spells, but the vast majority of spells are saving throws on the part of targeted creature, which frightened does not affect.
True, but there are still lots of spells and abilities that still use attack rolls. And if a creature can cast spells, DMs often have a lot of leeway in deciding what those spells might be. With a quick look through the spells list I can think of a few examples you might face:
  • Fire Bolt
  • Chromatic Orb
  • Ice Knife
  • Ray of Sickness
  • Scorching Ray
  • Vampiric Touch

They might not be as common as spells that take a saving throw, but there are still plenty of them. It's no Aura of Warding, but it definitely offers an extra layer of protection.