@GunEnergy functions completely differently from matter, and therefore your weapon would not affect energy.
Light exists as a particle only when defined, but usually exists as a superposition. Furthermore, light is not a charged particle. And lastly, as this light is capable of blocking missiles to the face, the magic quite clearly alters the natural functions of light. Light would not normally be able to do that, as it's natural state is as a quantum superposition of particle and wave. Light can just as easily be expressed as a vibration in space rather than a particle.
@SavatoIt's stated that she has infinite power by subjective sources, but actual feats as you stated clearly contradict this. Her powers clearly have a limit, and she has often hit that limit. Furthermore, just because her sons were unable to kill her does not mean she is completely immortal, merely that she has a Cell-level healing factor.
There are many characters below God-tier capable of that kind of destruction. The weapons from Soul Eater are able to devour the souls of their enemies. Touma from To Aru Majutsu no Index is able to negate supernatural healing, as is Gae Darg from Fate/Zero.
Both her and Palpatine have planet-level mind-control feats. So it seems they're fairly evenly matched in that aspect.
@dirty slimePalpatine can't be seen by human eyes. Considering the distance, this puts him at Mach 5 at best. Lightspeed is Mach 1.000.000, just as a frame of reference.
And just because droid brains are capable of processing information at lightspeed does not mean that their vehicles are capable of reacting at that speed, nor that their information processing is superior to Anakin's Force-based intuition. Various human pilots in Star Wars have outdone droid ships, doesn't mean they have FTL reactions.
Blasters are about speed-of-sound. So deflecting that many of them is a Mach 10 feat, maximum. And that's ignoring precog. With precog it's just a Mach 2 or 3 feat, logically speaking. Again not even mildly close to lightspeed.
I'm a huge fan of the EU my friend, but we're talking a confirmed planet buster here. Even Palpatine's Force Storms don't have enough energy to do that kind of shit.