Master Burn is when an ancillary token burns a “Master Token” upon each transaction (not including transfers). This takes two contracts, one ancillary contract and one Master contract. Both contracts have to be programmed to use this feature. Contrary to popular belief not every token can be burned by another token, the two tokens have to have a way to communicate. Some tokens come out saying they are burning SHIB, LEASH, BONE, etc. This is not possible since the contracts are not programmed to burn each other. These projects are just sending the tokens to a dead wallet so they can create hype.