Eldritch Aid

Choose up to two creatures within range. Each target gains 5 + your Spellcasting Modifier in temporary hitpoints. If one of those targets has its temporary hitpoints removed from damage before this spell ends,  the creatue with the temporary hit points takes [roll]1d4[/roll] Psychic damage.

Using a Higher-Level Spell Slot. Each target’s Temporary Hit Points increase is multiplied by the spell slot level used, and the Psychic damage taken increases by 1d4 for each spell slot level above 1.