Vahn's Vicarious Vision

You touch a willing ally. For the duration you and your ally have a mental link where, as a bonus action, you can choose to look through the other's eyes. Spells can be cast from the other's location as if you were standing in that location. This spell ends early if you are no longer on the same plane of existence. If your ally takes damage while you are looking through their eyes you also take half that damage. If both allies are looking through each others eyes and take damage they instead take the full damage.

If this spell is cast using a 5th level spell slot, 1 additional ally can be targeted. If this spell is cast using a 8th level spell slot, the duration extends to 1 week as well as the additional ally targeted.