CHAMPION CONCEPT: Ex, the Phantom Walker (or any name creators want to change it to)
http://i.imgur.com/bAzrxpa.jpg ^Rough Draft
Here is ONE spoiler only (:3) for another champion I was working on a while ago (some kind of Fire/Poison Otter - Updating Soon): http://i.imgur.com/bxPAmWO.jpg
Anything in this guide will be looked at thoroughly by close friends and is sure to change as I review things, any feedback helps a bunch. I don't have much knowledge with good scaling/ratios for certain things, I'll leave that up to the champion creators. Accidentally posted this in the wrong topic before, my apologies <3
Hey guys, lets begin. I'm a streamer (recent) that loves gaming and art, with a passion to create. I started playing League around when Season 3 Worlds began. The lore really caught my attention when I first started playing LoL, as I never played MOBAs in the past, its mainly the reason I choose to stick to this game as my main played (and of course its the most fun, gave up WoW, etc.) Its funny too because the champions you tend to enjoy more are the ones whose stories really draw you in, and the same ones you feel you can relate to, at least that's how it is for me. 
's lore inspired me the most to start creating champions, I've created 4 since his release. He is my fav champ, he was the first champ that I felt completely comfortable anywhere on the map with, and also the first champ I was able to carry hard on and ultimately, started learning the game much more as I played him mid/top. (I played a lot of support and jungle before and HATED mid/top) Anyway, If you don't read lore do it! You learn really cool stuff and get a nice story. On the flip side reading is good for you!
Enjoy!
Overview Abilities
Passive - Terrifying Presense/Sense: Moving and attacking builds stacks (make it build slower if its too OP to have it stack as fast as a Statikk Shiv). It is a risk being in the presence of Ex, because when he reaches 100 stacks - if he has sight on champions within 580 range - he will blind someone at random (for however long: 1.5-2.5 seconds) if there is nobody in sight at 100 stacks he will gain "Sense" which is just vision around himself for 2000 yards for 2 seconds.
Q - Alteration: Activation gives this skill 125 range (max 300) and allows you to enter an enemies body by merging with the matter, ticking physical damage. You will be returned the same distance you chose to enter the enemy to the direction of your cursor, but are exhausted and become immovable for same duration you were inside the champion, gaining a slight movespeed buff after the slight stall. (obviously can't be inside the champion for too long because that would be too OP and would be too hard to outplay, so I was thinking 0.5 seconds or maybe 1 second and a fair amount of damage for that short of a time, possibly even shorter than 0.5?)
W - Blood Shield: You will borrow health from your closest teammate for 3 seconds. The health returns after the duration. But Ex knows best, nothing comes for free. The enemy champion closest to you gains move-speed for the same duration. If Ex happens to die during this, your teammate who you borrowed from will be given the health back plus some of yours; if your teammate dies you borrowed health from your body emits an AoE DoT to everyone around you.
E - Forceful Wave: Pushes all enemies away, dealing damage, and slows them for 2 seconds.
R - True Slash: Grants vision of all enemies for 6/8/10 seconds. During this time you can appear next to an enemy champion anywhere on the map and strike after 1 or 1.5 seconds, dealing damage. If the blow defeats them, you are able to strike again after returning to where you casted from, potentially killing everyone if they are low enough. However, if the strike doesn't kill the target you chose, he and anyone near will be stunned for a few seconds (unsure of exact stun duration) but gain move-speed after due to being startled by the sudden appearance. Whether you kill or not you will be returned to where you casted from.
- I have a few different names I like for his ult, but whatever works: Art of the 5th Gate Unreal Assault (because hes a Phantom...is he actually real? Or just an illusion?)
Stats
Attack Power: High Health: Moderate - AP: Low Difficulty: Moderate-High
Attributes Fighter (or maybe Assassin?) Secondary: Support ^There isn't many of these kind of champs, that's mostly why I chose this combo, as well as they are my favorite roles :)
**Lore: COMING LATER TONIGHT/TOMORROW - Taking a bit of time on this one. I won a lot of short story contests growing up, but haven't written in a while. Want to make sure it will be blood-boiling.
Tips
Playing as Ex
Use your ultimate wisely, if you don't kill with it enemies have a better chance at fleeing then your chances at killing after (unless team is fully ready to dive as you Stun one or more of them) Using Q as teammates (or one teammate) collapse on an enemy is crucial to get an easy kill Enemies will want to attack when you become immovable after using Q, so use the move-speed to help re-position E can be used defensively or offensively (getting behind and knocking toward team) Pay attention to when you blind an enemy passively, it could turn the tables
Playing Against Ex Take advantage of his immobility after Q, he gains movespeed as well so setting up a stun right after could really help There is a 1 (or) 1.5 second cast time on his ultimate (you will receive some kind of mark or smog around you) which gives time to defend against it in whatever way you see fit Don't burst hard when he casts W unless you're outnumbering him/them (duo lane) Try to pay attention to when Ex's passive is down, you don't want to engage at the wrong moment
Suggestion to Rito: Make an anime based around Yasuo pl0x. I'll write for it. :>