Joker, Thief of Hearts

{x}: Create a token copy of target creature card in
a graveyard with a mana value equal to X, except
it is a Persona in addition to its other types.
Sacrifice two Personas: Create an X/Y Persona Creature token with all abilities of the sacrificed Personas, where X is equal to their combined
power and Y is equal to their combined toughness.
When Joker, Thief of Hearts dies, sacrifice all Personas.