Illagers are hostile mobs found in the game Minecraft. They are known for their distinct appearance, often wearing robes and carrying weapons. Illagers include various types, such as Vindicators, Evokers, and Pillagers, each with unique abilities and behaviors. They typically spawn in villages or during raids, attacking players and villagers alike. These creatures are part of a group that opposes the Villagers, who are peaceful and trade with players. Illagers can also summon other mobs, like Vexes, to aid them in battle. Players must strategize to defeat Illagers and protect villages from their attacks.