Elissa, the Blade Queen
Hello, so I have learned from previous comments that people mainly just want unique champions, instead of the same-ish theme just woven differently. So, I present to you, Elissa, the Blade Queen. Let's get down to it.
Basics:
Homeland: Unknown, believed to live between Zaun and Piltover
Stance: Neutral / Good (Eh to others, believes her actions are good)
Class: Assassin
Secondary: Mage
Lane: MID or TOP
Allies: 
Enemies: N/A
Type of auto attack: Melee (she carries a shining blade made of magical dust)
Powers
Passive: Sharpened Spells
Elissa's blades cut deep into her enemies. Her attacks apply a stack of Sharpened Spells. Sharpened Spells is a glyph that appears beneath a target that gets stacked 6 times. Once reaching the 6th stack, it explodes and creates a Spike Trap beneath the target that deals 15% of her current AP and AD.
Stacks: These fade after 4 seconds of not being attacked by Elissa. Stacks also disappear if the enemy is killed by any means.
Her ultimate automatically applies her passive to those that are hit.
Q: Piercing Retrieval
Range: 1175
Cost: 50/60/70/80/90 mana
Elissa sends out a blade that strikes a target and tethers them to Elissa. The tether lasts 3 seconds and only breaks if the targets moves out of range. She may re-activate the ability to instantly appear beside her target. The damage they are dealt is worth 50/80/110/140/170 (0% of her AD and 45% of her AP) magical damage.
W: Swirling Death
Range: 975 (if being placed). The Blades have a 750 connection range to Elissa. If connected to Elissa, they are equal to her basic attack range which is 550.
Elissa marks an area or herself to receive a round of Swirling Death. Swirling Death creates 3/4/5 blades that swirling above herself or the targeted location. These blades attack with Elissa's basic attacks or they attack the unit that is harming Elissa (targets champions above all). If Elissa moves out of range of her Swirling Death ability, they become vulnverable. Meaning that they can get destroyed by enemy basic attacks. Each blade has 1 health point so they have 3/4/5 health. She gains a blade every 2 levels of the ability (with level 5 being the exception). However, if Elissa moves back within range, the blades become untargetable. Each blade deals 20/30/40/50/60 (+0% AD and 15% AP) magic damage. There is a 0.5 delay between a blade taking flight. This ability only adds one stack of Sharpened Blades.
E: Enchanted Strike
Range: 520 (to those directly in front of her)
Cost: 70/90/110/130/150 mana
Her E is based of her previous spell cast within 5 seconds.
If she cast her Q before E the Blade is Ice Enchanted. Her ability gains the power to instantly slow all people and creatures hit by it for 20% of their MS.
If she cast her W before E the Blade is Flame Enchanted. The searing heat of her blade disarms her targets. (Disarm is a type of cc where enemies cannot declare attacks, similar to silence, only difference is that disarmed people can activate items.)
If she cast nothing before her E the Blade is Empowered, meaning it deals 15% more damage and applies a 0.75 second knockup.
Each blade has a base damage of 80/110/140/170/200 (+0% AD and 50% AP) magical damage.
R: Blade Storm
Range: 3350
Cost: 120/110/100 mana
Elissa surrounds herself in blades, after a 0.5 delay these burst from her in a wide circle that travel in different directions. She creates 8 blades, one for each cardinal direction and inter-cardinal direction. Each blade deals 200/250/300 (+0 AD and 75% AP) magical damage.
Cooldown: 140 seconds
(This art is not my own. It is simply used for an example. The art has been flipped. The art belongs to WolfKnights)
Lore:
Blades are quick and deadly, able to snap the life from someone in the blink of an eye. Then, there is magic. A wild and beautiful art that only the sharpest of minds can wield without... effects. But, the two combined? The bridge between power and efficiency? Why, that would be unstoppable. Just as the floating soul of Elissa is unstoppable.
There are rumors of a woman, excelling in both beauty and elegance alike, that holds an unnatural power beneath her kind exterior. Those who talk of this woman say she roams between the trans-century city of Piltover and maddening city of Zaun. Those that cross her don't leave to tell the tale. The only trace of that authorities have to work on are the mutilated remains of her foes left to rot in the streets or outside the city's walls. Yet, not all of her stories are as gory as these, there are those that praise the woman's abilities. Claiming that she cleaned up both the city of Zaun and Piltover with her powerful arcane control.
No matter the tale, all people can agree that the blades this woman can conjure out of thin air are as fascinating as it is horrifying. Only time and time alone can decide this woman's true nature, but for now, she is a fun and wild tale that is become something of a tradition for both the people of Zaun and Piltover alike to share amongst themselves.
Stats:
Health: 540.22 (+80 per level)
Health regen: 6.902 (+0.90 per level)
Attack damage: 54.05 (+3.5 per level)
Attack speed: 0.625 (2.5% per level)
Armor: 25.098 (+3.7 per level)
Magic resist: 30.0 (+0 per level)
Movement speed: 335
Emotes:
Ctrl + 1: "My blades serve me just as a servant serves its master."
Ctrl + 2: "Ha, your silly toys are no match for my mystic blades." and "Physical or magical... ah, nvm, magic duh."
(Her Ctrl + 2 has a fun visual. She summons two golden blades to fence each other, it ends with one blade getting broken in half)
Ctrl + 3: Elissa shuffles to the left, then the right, spins, and fires her blades into the air with golden dust flying behind them (these blades dance with her, she will continuously dance unless commanded to stop).
Ctrl + 4: Elissa points out her blade and laughs.
**Speical Interactions: **
Kill related:
Pentakill: En Garde!
Quadrakill: (laughs), "I guess you shouldn't have crossed me after all."
Killing Spree:
-
My blades seem to you like you.
-
(giggles) What do they not understand about blades being dangerous?
-
(grunts) This is hardly a challenge.
**Champion related: **
**Allies: **
: "Knife legs? Now, there's an idea."
: "(gasps) You have to let me try that!"
: "Ya know, crazy is perfect."
: "No, you belong in a museum."
Fellow assassin (uses blades): "I know right, you're blades are so dull compared to mine."
Fellow mage / assassin (magic): "Hmm, you should try blade magic, much more effective."
Enemies:
: "Is just me, or does Camille seem extra... sharp today?"
: "Quick doing that... without me!"
: "Man, and I thought I was bonkers..."
: "If you even... oh that's it, I am putting you in that museum myself."
Enemy assassin (blades): "Hmm, what was that? Ah, a papercut."
Enemy assassin (magic): "Stop it tickles."
and feels much more refined than your previous works.