Burst of Speed is a self-buff that grants movement speed after an basic attack.
Burst of Speed resets Fiora's autoattack timer on-cast.
The attack speed buff and movement speed buff are two separate buffs.
Landing basic attacks or Lunge against units will grant movement speed for 3 seconds. This does not apply to structures.
The movement speed buff refreshes each time Fiora autoattacks within the first 3 seconds. This allows the movement speed buff to last up to a maximum of 6 seconds total if she performs an attack at the very beginning of the attack speed buff, and an attack at the very last moment of the attack speed buff.
Zhonya's Hourglass will cancel Blade Waltz if her initial target uses it before Fiora can cast her first strike.
Basic attacks or abilities that have already targeted Fiora will damage her as she begins Blade Waltz. If she dies, Blade Waltz will be canceled and put on cooldown.
On-hit effects damage are not reduced by Blade Waltz damage reduction on the same target.
Fiora will reappear next to the last enemy champion she attacks. Fiora will appear at her initial target unless they die or if she loses sight of them.
Blade Waltz will prioritize blinking to new targets if within range of addition enemy champions before blinking back to an already struck target(s).
When blinking next to an enemy champion, there is a small period of time of when she is targetable. She can take damage from area of effect abilities during this time and a turret's aggro will keep on re-locking to her if within range.