Duplicated change
Duplicated Form now legitimately manipulates your Max HP instead of creating a faux 'halved' state. This does mean that multiple stacks will continue to cut your Max HP in half, but will also interact with any mod effects that trigger when Max HP is manipulated. This can potentially turn into some crazy effects, but it's more clean and clear this way, and has the added benefit of healing half of your max HP back after the combat is over (the natural effect of healing for an equal amount when you gain Max HP).
Duplicated Form no longer gives extra cards, just energy and the 'enemy targeting Echo Form' effect.