An Illager is a hostile mob found in the game Minecraft. They are part of the Villager family but are characterized by their aggressive behavior and distinct appearance. Illagers come in various types, including Vindicators, Evokers, and Pillagers, each with unique abilities and attacks. Illagers often inhabit structures like Mansions or Pillager Outposts and can spawn during raids. They are known for their ability to use weapons, such as crossbows, and can summon other creatures to aid them in battle. Players must strategize to defeat Illagers and protect their villages from their attacks.