Hello, my name is Clad iv'e been a fan of LoL ever since i first played it... which was like years ago. I'll admit it's one of my dreams to work with artist and designers for league of legends. i'm about to finish off high school and begin college, majoring in animation in hopes to make something of it.
So today i like to introduce a few of my ideas of champions, that will hopefully inspire the LOL team to build from.
(sorry if pictures are bad i drew them and took a picture)
1- Nemmix, The Masked man
2- Slate, The Ultimate force
3- Tragen, The Colossus
4- Dext, The Driller


First Nemmix, my idea of him is a man who has the ability to control different types of mask that pertains to his emotions.

His Passive is Emotional- After using a ability Nemmix equips one of the three mask Joy,Hate, and Sadness. Joy Grants passive health regen, Hate gives bonus ap, Sadness grants passive mana regen while equipped. Depending on what mask is equipped certain skills can have a second effect.((you'll understand when you read the skills))

His Q is Sunshine- Brings forth the the joy mask in front of Nemmix and shoots out a burst of sun light Damaging enemies in the line. After used, it equips the mask joy on Nemmix
Emotional- If the Mask Joy is equipped on Nemmix then sunshine can be cast again in the next 3 seconds dealing damage based on oponnents missing health. If used then Nemmix removes the mask Joy.

His W is Mock- Nemmix can target himself, or a ally with the hate mask and create a clone (The Clone is untarget-able) of that target, which runs in a straight line, if it collides with enemy champions or if it finishes reaching its destination, then the clones explodes dealing aoe Damage. Equipping the Hate mask
Emotional- If the mask Hate is equipped then the clone gains bonus movement speed and also gives off and aoe stun when it explodes. When used the mask Hate is removed.

His E is Despair- Nemmix raises the mask Sadness in the air and the mask begins to cry in a small radius slowing nearby enemy champions. after use the mask Sadness is equipped.
Emotional- if the mask Sadness is equipped then takes reduced damage from nearby enemy champions. When used then the mask Sadness is removed.

His R is Emotional Breakdown (or Bipolar =P)- Nemmix removes any current mask equipped and summons all three mask in a target area building up dark energy for 3 seconds ((please note that Nemmix is channeling this ulti during that time)) Within that time the targets in that area get Slowed for 1 second then feared for 1 second then after the third second the Dark energy explodes dealing damage to all enemy champions in the area.

Okay now more depth into Nemmix He is a Ap range mage carry, his basic attacks are his mask shooting beams, (please note Nemmix has four mask 3 that fly by him and one on his face that changes depending on what skills are used) Nemmix is very squishy, bit makes up with his benefits. Nemmix himself doesn't talk but his mask depending on which is equipped. (the fourth mask is a dull and boring sounding mask, that's the mask that Nemmix starts off wearing) Nemmix back story is that he was alone and abandon until one day at a lunar festival he found a festive mask and became very fond of it and decided he wanted to make it come to life and be his friend, so he use the dark arts to bring it to life, but the mask betrayed him and took its own twisted form and called itself Shaco and took off causing its own mischief. Nemmix heartbroken lost all his emotions and in attempt to bring them back he made 3 mask joy hate and sadness. So Nemmix joins the league in search of his lost mask aka Shaco to truly have back his emotions. (( that's my dumbed down version of Nemmix back story))

Second Champ is Slate (going to make the rest kind of short spent hours writing this)
Slate is a Champion who is a ap range mage, he has the shape of a human but with allot of power in him (like he's made of energy like xerath in a way.)

His passive is overload- every time Slate is dealt more then 200 damage to him in the next 3 seconds he gains a stack of energy (max stack is two at a time) each stack applies bonus damage to his next ability depending on how much damage was dealt to him.

His Q is Force- which shoots out a force of energy from his arm in the area infront of him dealing damage and slowing enemy champions hit.

His W is Overdrive- Slate shoots out force of energy from his feet dealing damage to nearby enemies for every step he takes (but enemy takes reduced damage each time hit with it) and Slate gains bonus movement speed during that time.

His E is Sonic Boom- Slate shouts out a powerful force of energy to a target location dealing damage and silencing enemies in that area.

His R is Eruption- Slate channels for 2 seconds building up force within himself, and explodes himself at the end of the channel pushing back nearby enemies and dealing damage to them, Eruption can be cast again in the next two seconds where Slate can rebuild himself in the area of the explosion
(Dumbed down version again)

Third Champion is one of my favorites Tragen the Colossus
a short back story is that he is from Mount Targon, was a scholar who discovered and ancient relic weapon which was a necklace with a stone at the end of it. (short version)
Tragen is a mele tank. He is made of stone but during the game the more armor he builds the more stone is added to him until he looks like a actual colossus

His passive is Reinforce- Which grants his ability's a extra effect for every 100 armor he has, goes up to 300 armor.

His Q is Quake- Tragen stomps his foot causing a quake in a line dealing damage and slowing champions in the area. any enemy at the tip of the quake gets knocked up in the air
Passive Reinforced- after reaching 100 armor Tragen gains stone feet which increases the strength of the quake making the enemy that is hit at the tip of the quaked fling-ed up towards the spot where quake was first cast.

His W is Enhanced- Tragen gains passive armor and MR for nearby enemies ( 1 for each minion max is 10 and 3 for each enemy champion nearby max is 15)
When activated his basic attacks deal aoe damage and slows the main enemy being hit.
Passive Reinforced- After reaching 200 armor Tragen Gains stone armor which sends backs 10% damage of basic attacks to the enemy.

His E is Clasp- Tragen clasps both his arms in front of him dealing damage and grouping together any enemies in reach for .5 seconds
Passive Reinforced- after reaching 300 armor Tragen gains stone hands Clasping enemies in front of him in a wider range and stunning them for an extra 1 second for a total of 1.5 seconds

His R Colossus- Tragen Transform into a stone Colossus and runs into a straight line knocking aside any enemies in his way at the end of the run Tragen slams the ground and knocks up the single closest enemy champion in front of him.

(i feel like i forgot to type allot of other things for these champs but this will have to do for now)(Too tired to type up dext and upload pictures will do that tomorrow) Would love to hear your guys opinions and thoughts on the champions.

Thankyou