Sir Arthur, the Rationalist
Passive: Rested and Rational
If Sir Arthur has spent y amount of time without taking damage, then his bonus Magic Resist will be boosted by x percent. If this effect is active for y amount of time, it will begin to gain stacks. When struck with more than one stack, rather than lose the effects of Rested and Rational he will instead lose 1 stack.
Q: An Object in Motion:
Sir Arthur can activate this spell twice. On the first activation, Sir Arthur 'catches' the next ranged spell or skillshot to strike him within x seconds. He takes full damage, but begins to analyze the spell. All subsequent instances of that spell used against him deal reduced damage for the next y seconds or until Sir Arthur reactivates An Object in Motion, with the effect growing depending on how many times Sir Arthur is struck.
Sir Arthur can reactive An Object in Motion any time within y seconds after catching a spell, in order to return the attack as a skillshot in a designated direction. The spell does 50%+(z% Arthur's HP) damage to the first enemy unit struck, and has the same speed and range as the original. However it loses all special effects the original spell may have had.
W: It's Elementary, Dear Vel'Koz!
Sir Arthur fires his Mathulator-3000 gun, shooting forth an energy bolt. When the energy bolt reaches its maximum range, or strikes an enemy, it will split in two: One will pass through the target for a short distance, while the other will fire off at a right angle from the first. Sir Arthur can something control which of the two potential directions the second split takes with his own movement a la Draven's axes.
E: The Form of a Thing - Not the Thing
Sir Arthur loudly and convincingly questions reality as we know it, projecting his voice into a mid-range skillshot. If it strikes an enemy, they will be temporarily feared for a short period of time as their mind is filled with doubt: If magic isn't real, how did they turn into a laser bird? Why is there a little boy dressed as a mummy running through the woods? Wtf are these towers and little blue and red dudes?
R: Old Man Jenkins?!
Sir Arthur deduces the true secret of the spooky Summoner Rift magician's power. For a short period of time, all units in a short area around him are silenced as their identity is revealed. If Kog'Maw is on Sir Arthur's team, he gets a Kog'maw Snack. Someone says Jinkies. A laughtrack plays. Also, after the silence ends all effected units are given a debuff which causes them to lose a small amount of health whenever they cast a spell or use an ability for the next x seconds.