A rainbow is defined an arc or circle that exhibits in concentric bands the colors of the spectrum and that is formed opposite the sun by the refraction and reflection of the sun's rays in raindrops, spray, or mist.
Peace is a state of tranquility or quiet: such as freedom from civil disturbance, or a state of security or order within a community provided for by law or custom.
Cotton is a soft white fibrous substance that surrounds the seeds of a tropical and subtropical plant and is used as textile fiber and thread for sewing.
Firstly, bizarro Kal-El only wanted to stop Ally. Secondly, Kal-El asked for Tal’s help destroying the pendants. NOT to try to kill Anderson. It’s not that the 3 Kryptonian’s couldn’t defeat Anderson who ingested X-K, it’s that bizarro Kal was too weak (because of the main universe’ suns rays weakened and corrupted him), and Kal-El and Tal were not trying to kill Anderson. If Kal so wanted, he could’ve destroyed Anderson within a mere second.