Aurum, The Golden Hand
My concept, lore wise, if of a young but talented merchant and Gold Mage named Aurum Cherchuer. He's a crafty and charming schemer who knows how to make just about anything play into his hands. His usual demeanor is that of a cheery business man with a soothing smile, but sometimes, beneath that smile lies sinister intent.
His play style is that of a skirmishing mage like Vlad or Ryze. Unlike those two, his kit makes doesn't allow him to build tanky and receive a damage bonus. Instead, his kit relies on well timed cc and kiting until reaching the execution point, similar to that of Gangplank.
Passive: Growing Fortune
For every 50 gold he earns, Aurum gains one Aurei, for every Aurei he possesses, he gains +1 ability power
Q: Supply and Demand. 80/85/90/95/100 mana. 8 second cooldown. 800 unit range
1st cast: Supply. Aurum charges a spell in his hand, increasing in size and damage, while its charging, he consumes Aurei until he runs out or casts Demand. For every Aurei consumed, a portion of mana is restored.
2nd Cast: Demand. Aurum hurls supply to a target location, the spell then explodes dealing 20-80/60-120/100-160/140-200/180-240+(50%-80% AP) magic damage plus 5/10/15/20/25 bonus magic damage for every Aurei consumed.
W: Charming Words. 50/60/70/80/90 mana. 10 second cooldown. 300 unit range.
Passive: Aurum is immune to charms
Active: Aurum charms an enemy unit for 1/1.2/1.5/1.8/2 seconds, dealing 20/30/40/50/60+(60% AP) damage and making them walk towards him harmlessly.
E: Midas's Might. 60 mana. 5 second cooldown.
Passive: Aurum gains 2 bonus armor and magic resist for every Aurei he possesses.
Active: 1st Cast: Aurum channels magic into his hand, causing his next three basic attacks to gain 10/25/40/65/80+(40% AP) bonus magic damage and 120% bonus attack speed. 2nd Cast: Casting again will stun all enemies hit by the empowered basic attacks for .5 seconds at the cost of 40 mana and 5/10/15 Aurei depending on how many enemies will be stunned.
R: Gold Rush. 50/75/100 mana on cast. 120/100/80 second cooldown.
Aurum turns gold and creates a flurry of gold coins that fly around him and deal 50/100/150+(35% AP) magic damage per second to all enemies within a 600 unit radius. During this time, he gains 50% bonus movement speed and drains Aurei instead of mana, once he has run out of Aurei, he will begin draining mana. Aurei Drain: 5 per second. Mana Drain: 25 per second.