Corin Reveck, Clockwork Master
We all know (I'd hope) of Corin. After the loss of his daughter, he builds Orianna in her image, giving us one of the more used and loved mid laners in League. I don't know why Riot hasn't made him a champ yet...here's my interpretation on the matter.
Passive - Calibration: Corin studies and determines the weaknesses of each foe. Upon killing/assisting in a kill of an enemy he will then gain Calibration. Until Corin kills/assists in the kill of a different champion, he deals a small amount of extra damage to them and any crowd control used by him on the Calibrated target will last longer.
Corin's gears can connect. If two gears are connected and Corin
Q - Geared up: Corin places a gear on the ground that lasts a certain amount of time or until max gears + 1 is placed. Upon Rotation all enemies hit are damaged and slowed.
W - Superior Mechanics: Corin erects a clockwork wall on target gear. As the gear turns, the wall turns with it. The wall deflects all projectiles.
E - Rotate: Corin commands target gear and all connected gears to rotate. If an enemy is hit by a connected gear, Rotate's cooldown is reduced.
R - (Can't think of a name) Corin places a large gear on the ground. Upon reactivation or activating Rotate, the gear turns, moving all units (friendly and enemy) 180 degrees around the gear. This ability makes all champions move through terrain, but monsters and minions will collide with terrain and take damage.