Well, let's think for a bit to maybe help understand what time could influence in terms of the principle...
First, it can effect the obvious, which is time. If effected correctly through it's own breaking, one could effectively slow time to allow more hits or to steady one's aim perhaps. Second, it can effect the less obvious, such as initiative. If one were to effectively say slow the cycle of time for an opponent, one might even gain an extra round of attack or first attack.
Let's go deeper, as I am growing more intrigued as I think on time...
Think of time as line or string. You have a beginning, a middle, and an end, right?
Well, what if we were to cut the string in the middle. Now you have, oddly enough, two lines of very different times, but you have essentially two beginnings, two middles, and two ends. Now, what if we swap the two ends of the string and tie it back together. You now have a beginning that was a middle, a middle that was a beginning, and an end that was a middle( i know hard to understand, but picture the string and cut it and follow what i am doing visually ).
Now, what if we took that single piece of string and made it into a circle or cycle? Time is believed on the natural plane to exist as a circle, where the cycle repeats itself at some point (or at least that is a distinct theory someone has created that I find intriguing). The circle effectively creates no beginning and no end. All is middle.
Just think of what things you could do by manipulating the circle as you see fit, or the string? Or...what if you could take the linear string and turn it into the circle?
You effectively gain control over very powerful things. And very intelligent minds could find some VERY cool uses with this one.
If you could slow time, you could better dodge, block, parry, strike. You could essentially become a powerful adversary just off that one alone. Imagine mixing in other principles...
And I was thinking further on it, we can actually go one step deeper with this than I already did...
For instance, take the Time Principle and apply the Cyclicity Principle using the method described above. If time is a linear device, then attuning the Cyclicity Princpile to it would allow one to turn time circular. In other words, with the two working in unison, one could effectively turn the line into a circle(regarding time).
Using this circle method described above, one could literally rewind time, or perhaps fast-forward. Now this a bit deep for a single spell, but perhaps a line of spells? I mean, you could also fathom it as such...
If an action is defined within the realm of time it has a distinct beginning(the catalyst that led to what happened), the middle(the actual happening), and the end(what the end result of the happening). If one applied the time principle to this, we see the distinct line. Take and apply the Cyclicity Principle and you now have the circle of time, where each part is still distinct. But...what if...
What if you turned that circle a tad bit using that Cyclicity Principle(or maybe...Syntropy or something else?). You would not have affected the true time line, but merely shifted the positions of what was considered beginning, middle, and end. Now...what if we say return the circle back to a line using the time principle again? I suppose we could assume that the line would be altered, re-arranged, possibly shifted forward or backward enough that what was once the beginning could now feasibly be the end result?
I'm just beginning to think upon these things rather deeply as they relate heavily to my character's concepts and future.
Manu, would you have anything to add or guide me with this? I think what you've done with the Principles is at their root quite revolutionary and the impact is global. You rock Manu!