Getting near a bastion with a omen starts a raid

So you know how you get the bad omen from a pillager captain, well what if we can have a piglin captain that has a costume banner and If you kill it, it well give you bad omen it might not be surprising but when you get near a bastion you'll start a raid, if your close to a lava river or ocean the raid would start inside the bastion, this would be a great thing to put in the next update because getting into the bastion is very easy for some people. The mobs that would spawn in the raid would be piglins, piglin brutes, and hoglins, when killing a piglin you'll get things that they trade for example killing a piglin it would give you a pearl or some quarts, or killing a piglin brute, they will give you a gold ingot or block. It well all depend on the level of the raid and type of bastion.