Dissociation

Enchant Legendary Creature or Planeswalker
Enchanted permanent has Phasing.
When Dissociation enters the battlefield
Phase Out the enchanted permanent and then you
create a token that's a copy of it, except the token
has Phasing.
"The worst part is when you start screaming
and you hear it as someone else screaming
and it makes you want to scream and..."