Cosmic Scale War

I am not satisfied with how the war here on earth is being fought. Very primitive. When they say war I am thinking of the following:

1. Shrinking of any star (sun for our case) into a black hole. In Stargate SG-1 the Asgard did this to combat replicators. They shrunk a certain star into a black hole and throw the replicators into it.
2. Adding mass to a certain Jupiter-type planets and make them into star. In this way the whole planet will be destroyed as well as causing system-wide physical imbalances like increase of temperature in some planets. This was done by the Human beings with the use of Klikiss torch in Saga of the Seven Stars by Kevin J Anderson.
3. Radiation cascade. Sending series of radiation bomb in the atmosphere of the planet reducing almost all biological matters of that planet into molecular components. This was done by certain species in Delta quadrant against the species of Neelix in Star Trek Voyager.
4. Time-dilation wrap. Wrapping a whole planet into time-dilation warp. In this way, the time within the warp will slow down while time outside the warp will proceed in normal phase. This will provide ample time for the party outside the warp to develop certain technology to eradicate a whole planet. The Asgards did this to combat the replicators.
5. Cosmic wave, sending wave across a system and reducing certain biological or technological matters into microscopic dust depending on the frequency of the wave.
6. Extinguishing a star of a system. This can be done by sucking out the energy of the sun into some warp field. I think the hydrogues of the Saga of the Seven Suns can do this.
   

These are the just some of the hundred ways to do cosmic war and of these innumerable ways above are my favorite ways. I did not include the star war’s death star. You will need a lot of machineries before you can execute the functionality of that weapon. The best cosmic weapon is the utilization of cosmic objects and space-time fabric, like creating a black hole, a warp, or radiation.

The universe itself is currently at war, between Thermodynamics and Gravity. :)

And when I become the emperor of the universe, well, good luck to all of my enemies. Ha ha ha ha ha!