Holy Aura
For the duration, you emit an aura in a 30-foot Emanation. While in the aura, creatures of your choice have Advantage on all saving throws, and other creatures have Disadvantage on attack rolls against them. In addition, when a Fiend or an Undead hits an affected creature with a melee attack roll, the attacker must succeed on a Constitution saving throw or have the Blinded condition until the end of its next turn.
Holy Aura 5.5e 2024 vs. 5e 2014 edition differences
The 2024 version's duration is "up to 1 minute" (no change in length). It specifies "emit an aura in a 30-foot Emanation" instead of "coalesces in a soft radiance." The advantage/disadvantage effects are the same. The blinded effect now applies until the attacker's next turn, not until the spell ends.