The Illager is a hostile mob added in Update 1.11They are similar to Villagers, except they have pale skin and dark clothes. They are considered to be Village outcasts. They spawn in Woodland Mansions or raids. There are three variants, the Vindicator, Evoker, Illusioner, and Pillager. There are also technical variants: Witches and Ravagers.
Vindicator[]
The Vindicator spawns with an iron axe in their right hand. They drop 0-1 emeralds, which can be increased with the Looting enchantment. If a Vindicator is named Johnny or has the Johnny tag set to 1b, it will be hostile to all mobs aside from Evokers and other illagers, whereas normally it will only be hostile to players and Villagers.
Evoker[]
The Evoker is a mini-boss. They drop a Totem of Undying and 0-1 emeralds when killed, which can be increased with the Looting enchantment. They are hostile to players, Villagers, and Iron Golems. It will change the wool color for any blue sheep within 16 blocks to red. They summon Vexes and Fangs to attack. The Fangs do 6 damage, regardless of difficulty.
Pillager[]
pillagers are hostile mobs that spawn in pillager outposts. Pillager outposts are wooden structures rarer than villages, but more common then woodland mansions. they are armed with crossbows. 1 pillager at the outpost is a pillager captain. if you kill him you get bad omen. if you enter a village with bad omen, then pillagers raid the village. if you fight them off, you get hero of the village, meaning villagers give you flowers, cookies, cake, and seeds, and villagers give you a discount.