Minecraft wiki entry for Bad_Omen, associated text: In Java Edition, Bad Omen's potency determines the chance for illagers to be equipped with enchanted weapons when the player triggers a raid by entering a certain radius around a bed that a villager has claimed. If the raid results in player victory, the Hero of the Village's potency equals the Bad Omen's potency (capped at level 5). Bad Omen levels past the first also give a single extra raid wave, given the difficulty level. For example with Bad Omen II-V in Easy difficulty has four waves instead of three, Normal difficulty has six waves instead of five, and Hard difficulty has eight waves instead of seven.