Auto Mounting Mobs

execute @e[type=Skeleton,name=!Skelly] ~ ~ ~ execute @e[type=Spider,name=!Spidey,r=2] ~ ~ ~ scoreboard players set @e[r=1] spiderj 1

execute @e[type=Spider,score_spiderj_min=1] ~ ~ ~ scoreboard players set @e[type=Skeleton,name=!Skelly,r=2] spiderj 1

execute @e[type=Spider,score_spiderj_min=1] ~ ~ ~ summon Skeleton ~ ~ ~ {CustomName:"Skelly",Equipment:[{id:bow},{},{},{},{}],Riding:{id:Spider,CustomName:"Spidey"}}


execute @e[type=Zombie,name=!Zombee]~ ~ ~ execute @e[type=EntityHorse,name=!Horsie,r=2]~ ~ ~ scoreboard players set @e[r=1] spiderj 1 {Tame:0b}

execute @e[type=EntityHorse,score_spiderj_min=1] ~ ~ ~ scoreboard players set @e[type=Zombie,name=!Zombee,r=2] spiderj 1

execute @e[type=EntityHorse,score_spiderj_min=1] ~ ~ ~ summon Zombie ~ ~ ~ {CustomName:"Zombee",Riding:{id:EntityHorse,CustomName:"Horsie",Type:3}}


execute @e[type=Creeper,name=!Creeps] ~ ~ ~ execute @e[type=Pig,name=!Piggie,r=2] ~ ~ ~ scoreboard players set @e[r=1] spiderj 1

execute @e[type=Pig,score_spiderj_min=1] ~ ~ ~ scoreboard players set @e[type=Creeper,name=!Creeps,r=2] spiderj 1

execute @e[type=Pig,score_spiderj_min=1] ~ ~ ~ summon Creeper ~ ~ ~ {CustomName:"Creeps",Riding:{id:Pig,CustomName:"Piggie",Type:3}}



/summon EntityHorse ~ ~1 ~ {CustomName:Horsie,Type:3}