Blacklight Virus, Patient Zero

Flash, Haste
In order to cast Blacklight virus, Patient Zero you must sacrifice a creature you control. When Blacklight virus, Patient Zero enters the battlefield it may come in as a copy of target creature that died this turn except it is a legendary artifact creature named Blacklight virus, Patient Zero.
When Blacklight virus, Patient Zero deals combat damage to a player it may become a copy of target creature that player controls.