'Til Death Do Us Part

When you attach this card to a creature, create a copy of 'Til Death Do Us Part and attach it to another creature. Enchanted creature Weds creature enchanted by the copy of 'Til Death Do Us Part (both creatures share type, subtype, all active and passive abilities, and their respective powers and toughness are added together. They are still separate creatures).
Whenever either creature dies, so does the one it was Wed to.