silverfish racing

execute @p[score_walk_min=200,score_nearmob_min=1] ~ ~ ~ execute @e[type=Zombie,r=20,score_alerted_min=0,score_alerted=0] ~ ~ ~ summon Item ~ ~ ~ {Item:{id:stone_sword,Count:1,tag:{AttributeModifiers:[{AttributeName:generic.followRange,Amount:20,Operation:0,UUIDLeast:5,UUIDMost:5,Name:follow},{AttributeName:generic.maxHealth,Amount:10,Operation:0,UUIDLeast:6,UUIDMost:6,Name:heal}]}}}


{AttributeModifiers:[{Operation:0,UUIDLeast:1,UUIDMost:1,Amount:5.0,AttributeName:generic.movementSpeed,Name:whee}],display:{Name:"Anvil of Wheeeee"}}


/replaceitem entity @e[type=!Player] slot.armor.head skull 1 3 {SkullOwner:Farrahs,AttributeModifiers:[{Operation:0,UUIDLeast:1,UUIDMost:1,Amount:-1,AttributeName:generic.movementSpeed,Name:whee}],display:{Name:"Anvil of Wheeeee"}}

/replaceitem entity @e[type=Silverfish] slot.armor.head skull 1 3 {SkullOwner:dragnoz,AttributeModifiers:[{Operation:0,UUIDLeast:1,UUIDMost:1,Amount:-1,AttributeName:generic.movementSpeed,Name:whee}],display:{Name:"Anvil of Wheeeee"}}

/replaceitem entity @e slot.armor.head skull 1 3 {SkullOwner:Farrahs}