Minecraft wiki entry for Raid_captain, associated text: Raid captains spawn in the same conditions and occurrences of any illager, with no special occasions having one spawn and one spawning being completely randomized. In Bedrock Edition, a pillager raid captain can be spawned using the /summon pillager ~ ~ ~ minecraft:spawn_as_illager_captain command, and a vindicator raid captain can be spawned using /summon vindicator ~ ~ ~ minecraft:spawn_as_illager_captain command.