Kibbles' Artificer

Arcane Ablation

1-level Transmutation

You touch a piece of worn armor or clothing and imbue it with magic. The creature wearing this the imbued item gains 4 temporary hit points for the duration. When these temporary hit points are exhausted, at the start of the creature's next turn it will gain 3 temporary hit points. This repeats when those temporary hit points are exhausted as the previous total minus one, until no temporary hit points would be gained and the spell ends.
At higher levels: The initial temporary hit points increases by 1 for each slot level above 1st.