Mona's spell allows her to control the flow of time within a certain range.
Roman had an improper analogy.
If time were considered a kind of particle, with time particles evenly distributed everywhere, Mona could gather or disperse them, achieving the purpose of deceleration or acceleration.
As for the spell's effects, it was up to Mona to weigh them.
In any case, reversing time is impossible.
Time suspension is also beyond reach.
Mona's spell can only result in an effect infinitely close to time suspension.
Of course, such a spell is already very powerful.
As long as there is no external interference, she can pause a regular person's time for an entire day, while the latter would only feel that in the blink of an eye it's the next day.
The premise is that there aren't many powerful beings in the world who can contend with her.
