Domino

Choose up to three creatures, the first one must be within 30 feet of you, the second one must be within 30 feet of the first one and the third one must be within 30 feet of the second one. The targets must make a wisdom saving throw against your spell save DC, a creature can choose to fail the save. If all targets fail then these creatures are now linked, if one of them dies then they all die. If one of them takes damage then they all take damage. If one of them gets healed then they are all healed. If one becomes paralyzed then they all become paralyzed, ect. The linked creatures share damage resistances, immunities, vulnerabilities as well as conditional immunities. If one of the targets pass then nothing happens and the spell fails.