[Teemo Rework Idea] A take on the swift scout

Passive: Guerrilla Warfare Teemo gains invisibility if he stands still for 1.5 seconds without acting or being acted upon. He will remain stealthed so long as he doesn't move, doesn't act, or is displaced. If within a brush, Teemo gains stealth after 0.75 seconds even while moving and may move freely within its boundaries without breaking stealth. When Teemo breaks stealth, he gains the Element of Surprise for 3 seconds, granting him 20/40/60/80% bonus attack speed, and applies 1 "Noxious" stack to enemies on-hit.
(At levels 1/6/11/16)

Q: Toxic Shots Cost: 70/75/80/85/90 Mana CD: 8 seconds Passive: Teemo's basic attacks deal 10/20/30/40/50 (+ 30% AP) magic damage on-hit, and poison his target, dealing 24/48/72/96/120 (+ 40% AP) magic damage over 4 seconds, applying 1 "Noxious" stack each second (Max 10). Active: Teemo shoots a dart at the target enemy, dealing 20/45/70/95/120(+45% AP) magic damage, increased by 10% for each "Noxious" stack on the target, blinding the target for 1.5/1.75/2/2.25/2.5 seconds if they have 5 or more stacks.

W: Move Quick Cost: 40 Mana CD: 17 seconds Passive: Teemo gains 10/14/18/22/26% bonus movement speed if he hasn't taken damage from enemy champions or turrets for 5 seconds. Active: Teemo increases this bonus to 20/30/40/50/60% for 3 seconds, and prevents it from being disabled by damage.

E: Nimble Feet Cost: 45 Mana CD: 7.5 seconds Active: Teemo quickly dashes (0.5 seconds worth of movement speed) in a target direction over 0.15 seconds. Teemo can still basic attack during this dash. The cooldown of Nimble Feet is reduced by 0.5 seconds when Teemo hits a poisoned enemy.

R: Noxious Trap Cost: 75 mana + 1 Charge CD: 0.25 seconds Passive: Teemo stores a Noxious Trap charge every 30/25/20(affected by CDR) seconds, up to a maximum of 3 at once. Active: Teemo tosses a mushroom to a target location within 400/650/900 units, if it lands on another mushroom, it will bounce, travelling an additional 300/400/500 units. These mushrooms stealth and arm after 1 second. While armed, mushrooms grant sight of the surrounding 220 units. If an enemy steps on a mushroom, it detonates, granting sight of and poisoning all enemies within 200 units for 4 seconds, dealing 50/75/100 (+ 15% AP) magic damage each second, increased by 5/10/15% for each "Noxious" stack on them, applying 2 "Noxious" stacks each second, and slowing them by 30/40/50% while the poison lasts.

Please tell me what you think.