/summon villager ~ ~2 ~ {VillagerData:{profession:librarian,level:5,type:plains},Offers:{Recipes:[
{buy:{id:iron_ingot,Count:15},buyB:{id:diamond,Count:4},sell:{id:iron_axe,Count:1,tag:{display:{Name:"{\"text\":\"Hardened Steel Hatchet\",\"color\":\"gray\"}"},Enchantments:[{id:"minecraft:efficiency",lvl:3},{id:"minecraft:sharpness",lvl:2},{id:"minecraft:smite",lvl:4},{id:"minecraft:unbreaking",lvl:4}]
},maxUses:9999999}}]}}
