Wait so Erika can freeze time to do all that but Kanon or Battler can't? That's damn unfair.
I think Ryukishi is a bit awkward with this though, so the gameboard is meant to be frozen after the logic error, which continued to exist because Battler was trapped. But during the duel between Erika and Beatrice, Dlanor 'updates' about the window seal being altered, thus Kanon is actually able to rescue Battler, so the logic error can be fixed. Um...so if it's frozen, it's as though a truth was added and the pieces automatically adopted new positions, and as if the previous position had never existed? I'm honestly damn confused about this...