OnePlus have traditionally been the holders of the "flagship killer" title, although most would claim they lost the rights to it with the continuous hikes in prices. The Redmi K20 Pro is, without a doubt, the new flagship killer on these streets, and Redmi is happy to let OnePlus know in a new ad campaign.
https://www.notebookcheck.net/New-Redmi-ad-campaign-takes-bold-shots-at-the-OnePlus-7-phones.422933.0.html