Glance into the Otherworld

Create a token that's a copy of target creature you control. For each card encoded on the copied creature, encode that card onto the created creature. It has "Whenever this creature deals combat damage to a player, its controller may cast a copy of each card encoded on it by the spell that created it."
"I never believed him, but my uncle always said that behind each and every mirror there was another world filled with other versions of us." -Mira, Lazav's niece