Bio Synthesis

You harness the energy of the surrounding environment and infuse it into a willing creature you touch. The target gains temporary hit points equal to 1d8 + your spellcasting ability modifier. Additionally, the target gains advantage on Constitution saving throws against diseases and toxins for the duration of the spell.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the die goes up to 1d10.