Guardian of Faith
A Large spectral guardian appears and hovers for the duration in an unoccupied space that you can see within range. The guardian occupies that space and is invulnerable, and it appears in a form appropriate for your deity or pantheon.
Any enemy that moves to a space within 10 feet of the guardian for the first time on a turn or starts its turn there makes a Dexterity saving throw, taking 20 Radiant damage on a failed save or half as much damage on a successful one. The guardian vanishes when it has dealt a total of 60 damage.
Guardian of Faith 5e 2024 vs. 2014 edition differences
The 2024 version states the guardian is invulnerable and appears in a form appropriate for your deity or pantheon, whereas the 2014 version does not specify invulnerability or appearance. The 2024 version clarifies damage is dealt when enemies move into or start their turn within 10 feet, while the 2014 version only specifies moving into the area.