Symbiosis

The caster and a creature of your choice that you can touch split temporary hit points equal to 1d4 + your spellcasting ability modifier. This spell has no effect on undead or constructs.
If you or the targeted creature takes damage within the next round, the other creature affected by symbiosis will take half of the damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the healing increases by 1d4 for each slot level above 1st.