Episode 21: The Situation at the SDM From the Artist's Pixiv page.

According to this rulebook ...

... I can only stop time once per match.

Well, isn't that to be expected?

Your power would be far too advantageous if used repeatedly.

It's good enough that you can use it once.

It's important to have ourselves a trump card.

Well, that's true, but...

...it seems to also state that Milady cannot "Manipulate the fate of the match".

I wouldn't be foolish enough to do that.