Warning: Contains SPOILERS for Star Wars: Darth Maul – Black, White & Red #1! The Death Star was Emperor Palpatines ultimate weapon in Star Wars, as it held the power to destroy entire planets with a single blast, and acted as the physical manifestation of the Empires unyielding power in the galaxy. However, as dangerous as the Death Star was (before it was destroyed, of course), it pales in comparison to the weapon Palpatine actually wanted to use to bring the galaxy to its knees.
https://screenrant.com/palpatine-wanted-1-star-wars-weapon-deadlier-than-death-star/