Enervation of Solidarity

At first level, you and a minimum of two other willing players, or creatures (NPC's, locals, familiars, etc.), lay hands on a wounded creature. Arcane energy channels through all and transfers vitality from the healing players to the wounded target. The healing players must agree on how many Hit Points are to be transferred, however, it must be the exact same amount of Hit Points from each player.

Note: Temporary Hit Points may be transferred but they will remain as Temporary Hit Points to the targeted creature/player.

WARNING: Non-magical creatures participating in the laying of hands will become exhausted for one full round after this spell is performed IF more than 2 HP per player are transferred to the wounded creature/player. Additionally, if more than a quarter of any participant's health is transferred, they become unconscious for one round.

An exhausted player will have disadvantage on attacks and saving throws, as well as being unable to preform reactions or bonus actions.

At Higher Levels.   When you cast this spell using a spell slot of 2nd level or higher, only one other participant is required to perform this.

At level 3 or higher, this works with unwilling creatures. However, they still somehow have to be touching the target.

At 4th level or higher, the exhaustion and unconscious penalty is removed from non-magical creatures assisting.

At 5th level or higher, the Hit Points no longer have to be even among participants to be transferred; you can choose how many from each participant.

At 6th level or higher, the amount of Hit Points drained from each participant is halved compared to what is transferred. E.g., 10 HP to be transferred, only incurs 5 HP loss from the participant(s).