User blog comment:MonoKirisame/League of Gensokyo - Sakuya Izayoi, the Perfect and Elegant Maid/@comment-5112778-20130202110550

I really like the concept of the ulti being able to cutdown the CD of other abilities while active, but I think it doesn't really suit an ADC since it'll mostly be used as a defensive/escape skill along with Vanishing Everything. I suggest making the ulti a large AoE Buff for her where if she stays inside it, her CD are cut down and basic attacks reduce the CD of all her skills while any enemy champions that stays inside the circle have their attack speed and movement speed reduced initially by 20% and 35% respectively, and for every second they stay inside the circle they have their Aspd and Mspd reduced further by another 5%. Finally, if they stay inside the circle for over 5seconds, they get stunned for 1 second. This'll probably be use for a more offensive play since it acts like a zoning skill where the enemy won't dare to tread in while you could just AA away and start throwing knives.

It's just a suggestion. It's maybe worse than the current one, but it's just how i think it would probably suit an ADC better.

Also, i think you might want to increase the mana regen. It's kinda low even for an ADC, Normal ADC's have it around 6.5 mana regen.

And i'm assuming you just left the "...gain per lvl" blank since you couldn't figure out what to put there so here are some suggestions.

Health regen per level: 5.7 (+0.55)

Mana regen per level: 6.3 (+0.65)

Armor: 14 (+3.4)

Remember the health and mana regens are "Every 5 seconds" not every one second.