Arcane Ablation

You touch a piece of worn armor or clothing and imbue it with magic. The creature wearing this imbued item gains 4temporary hit points for the duration. When these temporary hit points are exhausted, at the start of the creature's next turn it will gain hit points equal to 1 hit point less than the previous amount gained from this spell (for example, from 4 to 3), 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.