Battlemind's Fortress

You fortify your body and mind for battle with a psionic shield of power. When you cast this spell, you gain temporary hit points equal to 1d6 + your Charisma modifier. While you have temporary hit points from this spell, you have resistance to bludgeoning, piercing, and slashing damage.

Once you lose all the temporary hit points granted by this spell, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the temporary hit points increase by 1d6 for each slot level above 1st.