By a "source power" I mean a power in which all other powers in the power system are derived from and likely specific applications of. For two examples of power systems I know of with a "source power" just look at Fire Force where every power is derived from pyrokinesis and Deadman Wonderland where every power is derived from blood manipulation.

I would prefer if the power you suggest as a potentially interesting and fun "source power" isn't one you are aware being used as one in a work of fiction as the "source power" for an entire power system. I would much prefer the power you suggest being something you think could make for an interesting "source power" with potentially providing some reason behind it (though providing a reason is not necessary) without knowing for sure it could be one by straight up knowing a power system where it straight up is.