Heroism
A willing creature you touch is imbued with bravery. Until the spell ends, the creature is immune to the Frightened condition and gains Temporary Hit Points equal to your spellcasting ability modifier at the start of each of its turns.
Using a Higher-Level Spell Slot. You can target one additional creature for each spell slot level above 1.
Heroism 5e 2024 vs. 2014 edition differences
The 2024 version states "up to 1 minute" duration, but functionally same as 2014; both grant immunity to frightened/Frighened condition and temporary hit points equal to caster's spellcasting ability modifier at start of each turn. The 2024 version omits the clause about losing remaining temporary hit points when the spell ends.