Purphoros’s Devotee

Piety Trait

Piety 3+ Purphoros trait

As a devotee of Purphoros, you have drawn the notice of the forge god with your skill. You can cast shield of faith with this trait, requiring no material components, a number of times equal to your Intelligence modifier (minimum of once). You regain all expended uses when you finish a long rest.

In addition, you know the mending cantrip. Intelligence is your spellcasting ability for these spells.

Source: Mythic Odysseys of Theros p. 76