Ways and Methods to Destroy an Enitire Civilization

1. Consumption of atoms
2. Omni directional destruction of planet's entire surface
3. Hordes of smaller ships sent from mothership, that instantly obliterate entire cities once sent
4. Launch countless bombs all over the planet's surface, which will suddenly explode once landed, creating an explosion vastly more powerful than the tsar bomb
5. Matter consuming nanites, that will consume the entire planets civilization in minutes
6. Posion the planet itself, eventually killing all life, and whole cities melting to the ground
7. Like the hit film Independence Day, launch numerous city destroyers that destroy cities all over the target planet after a countdown
8. Countless destructive tentacles that can manipulate its shape and size, that instantly cut through and massacre entire cities in no time
9. Countless energy spheres that instantly engulfs the planet, and then launch a destructive blast, that simultaneously obliterate all the cities in the planet's surface, and the civilization itself
10. Mind control the entire species of the civilization into killing and destroying each other without any mercy, even launching nukes at ones own cities, never stopping until the civilization is consumed completely
11. Shooting out countless beams, that utterly annihilate, everything in the planets surface in just a few seconds
12. Creating a super storm, that completely engulfs the planet, that shoots out multiple lightning bolts that effortlessly reduce whole cities and the civilization itself into ashes in no time
13. Creating a massive black hole that consumes the planet and its moon or moons in just a few second, instantly killing the civilization
14. Creating a massive unstoppable tsunami made of fire, that's would effortlessly obliterate everything in the planet's surface in no time
15. Manipulating the planet's core, and supposedly the planet itself, to the point where all life becomes extinct and all its cities collapse to the ground
16. Turning off the entire planet's gravity, causing everything in the planet, aka the civilization to fly off into space, and once in space, the mothership creates a sphere that sucks in the remnants of the civilization into oblivion
17. Launching countless large bubbles, that instantly suck in, whole cities and the civilization itself, even its satellite system, and once inside the bubble, all sucked in is vaporized in the blink of an eye
18. Turning the entire planet's surface into a liquid type substance, causing everything in the planet to be sucked in towards its core, destroying the entire civilization in seconds
19. Instantly disabling all the civilizations technology, making them no more a threat than primitive cavemen, and then the attackers having their way with the now defenseless species, making them their bitches to say the least
20. Creating an omni directional wind blast that completely annihilates everything in the planet's surface in a few seconds
21. Simply blow up the planet!