system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] [Doctor Strange 2 spoilers] Why can’t Wanda recreate her children?

She made Tommy and Billy through her own power in WandaVision. What’s stopping her from doing the same, instead of going on a murder spree to steal versions of them from another Wanda?
gpt
A. She knew they were fake rather than the real versions 

B. A bunch of people went through a lot of trouble to stop what she was doing last time, and it's likely that she couldn't recreate them outside those circumstances.