Mana Shield (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S, M (a pearl worth at least 100 gp)|
|Duration:||Concentration, 10 minutes|
You create a protective sphere of magical force around a willing creature you can see within range. The targeted creature gains temporary hit points equal to 1d10 + your spellcasting modifier. If the targeted creature would take an amount of damage that exceeds their current temporary hit points, they instead lose all temporary hit points and take no damage, and the spell ends.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the spell grants an additional 1d10 temporary hit points for each slot level above 1st.