[NEW] Champion Concept #4 [Rheanne, Swift Killer of Gaia]

Hey guys, I wanted to create one more champion concept before I go to bed and I'll try to make this one interesting.
As I said in the previous champion concepts, the picture I found is only the picture that inspired me to create the champions kit. I don't own the photo, i found it on google images. On that note, let's get started. (I'm writing this on the spot)

Champion Name: Rianne, Swift Killer of Gaia
Main Role: Jungle / Secondary Role: Top Lane
Uses Rage as main resource.
Weapons are two hand scythes

Passive: Hateful Momentum
Rianne's attacks generate 5 Fury with each basic attack and loses 10 Fury per second if she hasn't dealt or received damage in the last 15 seconds.
Rianne gains 0.45% bonus movement speed per point of fury. (45% bonus movement speed at 100 Fury)
Every basic attack, Rianne gains stacks of Hateful Momentum. Each stack gives Rianne +5% bonus attack speed and (0.8 AD per champion level) with a maximum of 5 stacks. (25% attack speed and 72 AD with full stacks at level 18) At 5 stacks, Rianne also gets +30% movement speed for 1.5 seconds on-hit. (movement buff doesn't stack)

Q: Magma Blades
Rianne's scythes become red hot, increasing her critical strike chance by (15%/20%/25%/30%/35%) for (3/3.5/4/4.5/5) seconds.
Rianne's basic attacks also burn the enemy dealing (10/30/50/70/90 + 60% AP) magic damage over 3 seconds.
The burn can only be applied to the same target once every 15 seconds

W: Nature's Sting
Rianne stabs the opponent in both shoulders, dealing (40/60/80/100/120 + 70% AP) magic damage and lowering their attack speed and armor by 10% for 8 seconds. If you use Nature's Sting on a burned enemy, they become stunned for (1/1.25/1.5/1.75/2 seconds).

E: Stiff Breeze
Rianne calls a gust of wind to create a low pressure system for 4 seconds, increasing self and ally movement speed by (30%/40%/50%/60%/70%) and slowing all enemies in range by (15%/20%/25%/30%/35%). (It's a wide circular area like malzahars circle thingy)


R: Volcanic Impulse
Rianne swings both scythes in front of her, the blades extend in flames firing forth a wave of fire that deals (125/175/225 + 80% AP) magic damage and burns the enemy for (80/160/240 + 20% AP) magic damage over 3 seconds.