Iroas’s Votary

Piety Trait

Piety 10+ Iroas trait

You can cast crusader’s mantle with this trait. Once you cast the spell in this way, you can’t do so again until you finish a long rest. Charisma is your spellcasting ability for this spell.

In addition, you have advantage on saving throws against being frightened.

Source: Mythic Odysseys of Theros p. 49