Haunted Forest Mimic

You may have Haunted Forest Mimic enter the battlefield as a copy of any creature on the battlefield, except it has "{u}{b}, {t}: Destroy target creature with the same name as this creature."
"And remember. If you see someone who looks like me,
watch out, they are not like me. They are not me. And
you wouldn't believe what they could do-"
*leg chopped and head cleaved in half
-Quinton the Guide