CHAMPION CONCEPT: I DON'T HAVE A NAME YET, ASSASSIN OF THE FOREST

So my thinking for this champion was an assassin elf that wields a bow and dagger. At a farther range he would use his bow attacking the enemy with arrows but when he got close he would stab them with his dagger dealing more damage at higher risk. His attack range for his dagger would be very close closer than most regular melee champions.

Appearance: None of these images exactly show what my Idea was for the champion but these were the closest I could find: https://vignette3.wikia.nocookie.net/gamelore/images/4/43/Rhys_the_Exiled.jpg/revision/latest?cb=20140321124801 https://s-media-cache-ak0.pinimg.com/736x/92/ab/98/92ab986360bbe14278157fc687f9efd8--rogue-assassin-knight-armor.jpg https://i.warosu.org/data/tg/img/0324/80/1401580066425.jpg

So the champ would be wearing a black and or green hood and cloak. He would have long ears and bright green eyes. He would carry a quiver on his back and a dagger sheathed on his thigh. When switching from bow to dagger he would attach his bow onto the quiver on his back.

Kit: so this isn't really complete and I don't have the scaling cool downs or damage but this is what i have,

Passive: When within a certain distance of an enemy champion switches from ranged to a melee attack instead this attack deals increased damage based on your ad, if you are below 25 percent health when you use a melee attack it critically strikes and applies grievous wounds.

When below 25 percent health you mount a horse giving you increased movement speed, using your E will cause you to leap off your horse

Q: Fires an arrow that slows, if you are below 25 percent health you fire 3 arrows in the same direction and if you hit all 3 it stuns the target.(cannot be used in melee distance

W:Targetable When used on an ally heals for a small amount, for the next 10 seconds they have increased regen and healing when used on an enemy deals a small amount of damage for the next 15 seconds reduces armor and magic resist, if below 25 percent health doubles the effects

E: When activated leaps a small distance 3 times in a row in between each leap, auto attack once(If not targeting a specific enemy prioritizes champions) if below 25 percent health you become untargetable during each dash( using this ability causes you to leap of your horse if you have it)

R: Calls in a group of ranged elves in a U formation that fire arrows into the center with a duration of 4 seconds if an enemy remains inside that U for the duration they are rooted, if below 25 percent health when you ultimate ends they are stunned.

Please leave comments giving criticism, I can take harsh criticism i just want to know how to impove or if i should just scrap the idea