Timelost Arcana: Lesser Divine Chain

Choose a creature within range. Upon a successful attack you may choose whether to do 1d6 + your spellcasting ability modifier of radiant damage or the target can regain that amount of hit points.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage/healing increases by 1d6 for each slot level above 1st.

This spell is linked to the subclass "Timelost Prayer; Chainbreaker" although it may tie in to other subclass themes.