Eternal Union

When Eternal Union enters the battlefield, create
a 1/1 Human token named "Spouse" and a 1/1
Human token named "Partner", both have
lifelink.
At the beginning of your upkeep, if you control
both a "Spouse" and a "Partner", all opponents
lose 3 life and you gain 3 life.
While the world burned around them they forged an unbreakable bond that echoed through the ages.