angrybull said: If she wants another one, she can just steal it from Yuyuko. Her power won't work on Kaguya.
True, but neither can Mokou enter Yuyuko's domain. As quoted in PCM and IN, being in Hakugyokurou is equivalent to being dead already, and Mokou's immortality is an absolute thing. Maybe Marisa could steal one for her...
AH!Hey, hey. Mokou-tan, let's have a contest!...test.GAME OVERGeez!Let's have a con......I can't win at all!