Susanoo of Itachi

Bestow {x}{u/r}{u/r}
When Susanoo of Itachi enters the battlefield, if The bestow cost was used, deal X Damage to any Target. If 7 or more Damage was dealt, give the Enchanted Creature Seven +1/+1 Counters.
Both Susanoo of Itachi and Enchanted Creature have First Strike and Haste.