The Rift of the Aether Sword

Item to need it work:
/give @a minecraft:diamond_sword 1 0 {Unbreakable:1,display:{Name:"The Rift of the Aether"}}
First:
/scoreboard objectives add damage stat.damageDealt
Second:
/testfor @p {SelectedItemSlot:0,Inventory:[{Slot:0b,tag:{display:{Name:"The Rift of the Aether"}}}]}
/testfor @p[score_damage_min=1]
Like
OiO
Now compared to
/execute @p[score_damage_min=1] ~ ~ ~ particle portal ~ ~1 ~ 0 0 0 5 2000 @e[type=!Player,r=6]
/effect @p[score_damage_min=1] 2 0 0
/execute @p[score_damage_min=1] ~ ~ ~ particle witchMagic ~ ~1 ~ 3 3 3 2 500 @e[type=!Player,r=6]
/effect Tanakami minecraft:regeneration 5 2
/execute @p[score_damage_min=1] ~ ~ ~ effect @e[r=6] 20 5 2
effect Tanakami minecraft:wither 0
effect Tanakami minecraft:saturation 2 2
THEN
/scoreboard players set @p[score_damage_min=1] damage 0