Cannibalize

You touch one corpse no older than one week and cause it to dissolve to nothing extracting its essence which flows into you restoring 1d4 hit points and granting 1d4 temporary hit points.

            At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you restore an additional 1d4 hit points and gain an additional 1d4 temporary hit point for every slot level above 1st.