A map by Dragnoz

testfor @e[name=Dragnoz]

/summon EntityHorse 0 60.5 0 {Riding:{id:"WitherSkull",direction:[0.0,0.0,0.0]},CustomName:"A Map by:",CustomNameVisible:1,Invulnerable:1,Age:-1700000}

/summon EntityHorse 0 59.5 0 {Riding:{id:"WitherSkull",direction:[0.0,0.0,0.0]},CustomName:"www.youtube.com/dragnoz",CustomNameVisible:1,Invulnerable:1,Age:-1700000}

/summon EntityHorse 0 60 0 {Riding:{id:"WitherSkull",direction:[0.0,0.0,0.0]},CustomName:"Dragnoz",CustomNameVisible:1,Invulnerable:1,Age:-1700000}