Knight

/summon minecraft:iron_golem ~ ~1 ~ {Passengers:[{id:"minecraft:villager",Profession:3,CustomName:"\"Knight\"",CustomNameVisible:1,Health:20,Attributes:[{Name:"generic.maxHealth",Base:20}],HandDropChances:[2F,2F],HandItems:[{id:"minecraft:netherite_axe",tag:{display:{Name:'{"text":"Axe of the Peacekeepers"}'},Enchantments:[{id:sharpness,lvl:5},{id:smite,lvl:5},{id:bane_of_arthropods,lvl:5},{id:knockback,lvl:2},{id:fire_aspect,lvl:2},{id:looting,lvl:3},{id:sweeping,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},Count:1},{}]}]}

Bone Warrior

/summon minecraft:skeleton_horse ~ ~1 ~ {Passengers:[{id:"minecraft:skeleton",CustomName:"\"Bone Warrior\"",CustomNameVisible:1,Health:20,Attributes:[{Name:"generic.maxHealth",Base:20}],HandItems:[{id:"minecraft:netherite_sword",Count:1,tag:{Enchantments:[{id:sharpness,lvl:5},{id:smite,lvl:5},{id:bane_of_arthropods,lvl:5},{id:knockback,lvl:2},{id:fire_aspect,lvl:2},{id:looting,lvl:3},{id:sweeping,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]}},{}],HandDropChances:[2F,0F],ArmorItems:[{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:depth_strider,lvl:3},{id:frost_walker,lvl:2},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},id:"minecraft:diamond_boots"},{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},id:"minecraft:diamond_leggings"},{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4}]},id:"minecraft:diamond_chestplate"},{id:"minecraft:diamond_helmet",Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:unbreaking,lvl:3},{id:mending,lvl:1}]}}],ArmorDropChances:[2F,2F,2F,2F],ActiveEffects:[{Id:5,Amplifier:0,Duration:2147483647}]}]}

Ultimate Creeper

/summon minecraft:creeper ~ ~1 ~ {powered:1,CustomName:"\"Ultimate Creeper\"",CustomNameVisible:1,Health:20,Attributes:[{Name:"generic.maxHealth",Base:20}],ExplosionRadius:50,Fuse:198,HandDropChances:[2F,2F],HandItems:[{},{id:"minecraft:tnt",Count:1}],ArmorDropChances:[2F,2F,2F,2F],ArmorItems:[{id:"minecraft:flint_and_steel",Count:1},{},{},{}]}

Undead Horseman

/summon minecraft:zombie_horse ~ ~1 ~ {Passengers:[{id:"minecraft:zombie",CustomName:"\"Undead Horseman\"",CustomNameVisible:1,Attributes:[{Name:"generic.movementSpeed",Base:1.5f},{Name:"generic.attackDamage",Base:10},{Name:"zombie.spawnReinforcements",Base:1f}],HandItems:[{id:"minecraft:netherite_sword",Count:1,tag:{Enchantments:[{id:sharpness,lvl:5},{id:smite,lvl:5},{id:bane_of_arthropods,lvl:5},{id:knockback,lvl:2},{id:fire_aspect,lvl:2},{id:looting,lvl:3},{id:sweeping,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]}},{id:"minecraft:shield",Count:1,tag:{Enchantments:[{id:unbreaking,lvl:3},{id:mending,lvl:1}]}}],HandDropChances:[2F,2F],ArmorItems:[{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:feather_falling,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:depth_strider,lvl:3},{id:frost_walker,lvl:2},{id:unbreaking,lvl:3},{id:mending,lvl:1},{id:soul_speed,lvl:3}]},id:"minecraft:diamond_boots"},{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},id:"minecraft:diamond_leggings"},{Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},id:"minecraft:diamond_chestplate"},{id:"minecraft:diamond_helmet",Count:1,tag:{Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:respiration,lvl:3},{id:aqua_affinity,lvl:1},{id:unbreaking,lvl:3},{id:mending,lvl:1}]}}],ArmorDropChances:[2F,2F,2F,2F],ActiveEffects:[{Id:5,Amplifier:0,Duration:2147483647}]}]}