/execute @e[type=WitherBoss,name=Dargoth] ~ ~ ~ /summon Skeleton ~ ~1 ~-2 {CustomName:"StrongGuard",CustomNameVisible:1,Equipment:[{id:diamond_sword,Count:1,tag:{ench:[{id:16,lvl:10},{id:19,lvl:2},{id:20,lvl:5}]}},{},{},{},{}],DropChances:[0.0F,0.085F,0.085F,0.085F,0.085F],PersistenceRequired:1,Silent:1,HealF:70}
/execute @e[type=WitherBoss,name=Dargoth] ~ ~ ~ /summon Skeleton ~ ~1 ~2 {CustomName:"DefensiveGuard",CustomNameVisible:1,Equipment:[{id:wooden_sword,Count:1,tag:{ench:[{id:19,lvl:5}]}},{id:diamond_boots,Count:1,tag:{ench:[{id:34,lvl:1}]}},{id:diamond_leggings,Count:1,tag:{ench:[{id:34,lvl:1}]}},{id:diamond_boots,Count:1,tag:{ench:[{id:34,lvl:1}]}},{id:diamond_helmet,Count:1,tag:{ench:[{id:34,lvl:1}]}}],DropChances:[0.085F,0.0F,0.0F,0.0F,0.0F],Attributes:[{Name:generic.maxHealth,Base:30},{Name:generic.movementSpeed,Base:-0.05}],HealF:30,PersistenceRequired:1,Silent:1,ActiveEffects:[{Id:12,Amplifier:0,Duration:20000}]}