[Champion Concept] Trogar - The Troll Shaman
Role: Mage, Support
Inspiration: While this champion was originally inspired by the idea to have a global CC ability, his identity shifted more into an area-control mage focusing on auto-attacks and packed with a lot of counter-play.
General Design Philosophy: Trogar is a different kind of mage: his abilities focus on creating areas where he is strong, and areas where an enemy cannot tread without eating hard CC. He was intended to play almost like a Marksman mage, and win fights with correct usage of his various zones of strength to apply effects to his auto-attacks.
Appearance: Small and lanky Troll with simple rags on, etched on the rags are various runes. His hair is light blue and stands on end, although it is often obscured by his hood. http://img14.deviantart.net/c477/i/2012/265/e/9/forrest_troll_wizard_by_rogierb-d5fib7w.jpg http://digital-art-gallery.com/oid/1/800x621_779_Troll_shaman_2d_fantasy_troll_wizard_picture_image_digital_art.jpg
Lore: Trogar was a small troll, and didn't show either the innate prowess or dedication to become stronger. While other trolls fought each other for supremacy, Trogar retreated beneath the ice, only taking what food he needed to sustain himself; for what he was pursuing was a different kind of power. Trogar had spent practically his whole life researching magic, coming up with an entirely new brand of troll magic. Upon hearing of Trundle's plan to unite the trolls under one King, he left the ice in a self-imposed exile. Although he had been laughed at back in the Freljord, it was nothing compared to the ridicule he faced the other more magically inclined areas of Runterra. Having enough of his magic being called "brutish" and "unrefined", he ventured to the Institute of War and joined the League of Legends to prove its merit.
Strengths: Kit is packed with a lot of hard CC and sustained damage.
Weaknesses: Vulnerable to burstier Mages and Assassins. Suffers in fights if caught off-guard.
Plays most like...:

Auto Attack: A globe of raw energy lobbed from the center of his staff, infused with different properties.
Passive - Always learning - http://www.hiveworkshop.com/forums/resource_images/9/icons_8819_btn.jpg Trogar is always observing the world around him and learning new ways to modify his magical abilities. Every 100 enemy or ally spell-casts near Trogar (1200 Range) enables Trogar to makes a meaningful modification to his abilities of Trogar's choice. Q - Auto-attacks while in Charm of Magic's range restore 10 Mana. W- Charm of Frost's detonation slows non-rooted targets within 600 range by 40% for 2 seconds. E- Trogar and a target taunted by Charm of Rage gain 40% movement speed when moving towards each other. R- The totem Trogar empowers with Latent Power gains 200 bonus range.
Q - Charm of Magic - http://www.hiveworkshop.com/forums/resource_images/1/icons_675_btn.jpg Trogar's abilities summon Charms that appear at the target location after a short delay. Charms are small totems that act as a conduit for Trogar's magic. They have two effects: one effect improves Trogar's auto-attacks while he is in the Charm's area of effect, the second ability can be activated after a brief delay when Trogar reactivates the ability , which detonates it, discharging its magic in a small area. Charms last forever, however they can be destroyed by enemies by hitting them with 3/3/4/4/5 basic attacks. Trogar can only detonate Charms if he is within 1200 units from them. Area: While Trogar is in his Charm of Magic's area, his basic attacks deal 20/30/40/50/60(+30%AP) bonus Magic Damage. Range: 600 Detonate: All enemies within 150 units of the Charm of Magic take 40/60/80/100/120(+60%AP) Magic Damage and are Silenced for 1/1.1/1.2/1.3/1.4/1.5 Seconds. Range: 600 Mana Cost: 50 Cooldown: 12/11/10/9/8 Trogar's staff and auto-attacks glow lavender.
W - Charm of Frost - http://www.hiveworkshop.com/forums/resource_images/1/icons_676_btn.jpg Area: While Trogar is in his Charm of Frost's area, his basic attacks stack a slow on target, with each basic attack slowing by 5%/7.5%/10%/12.5%/15%, up to 20%/30%/40%/50%/60%. Slows last for 2 seconds, but the timer is reset with each basic attack. Range: 600 Detonate: All enemies within 150 units of the Charm of Frost take 20/40/60/80/100(+40%AP) Magic Damage and are Rooted for 1.1/1.2/1.3/1.4/1.5 seconds. Range: 600 Mana Cost: 50 Cooldown: 12/11/10/9/8 Trogar's staff and auto-attacks glow icy-blue.
E - Charm of Rage - http://www.hiveworkshop.com/forums/resource_images/3/icons_2993_btn.jpg Area: While Trogar is in his Charm of Rage's Area, he gains 20%/30%/40%/50%/60% bonus Attack Speed. Range: 600 Detonate: All enemies within 150 units of the Charm of Rage take 10/30/50/70/90(+30%AP) Magic Damage and are Taunted to Trogar for 1.1/1.2/1.3/1.4/1.5 Seconds. Range: 600 Mana Cost: 50 Cooldown: 12/11/10/9/8 Trogar's staff and auto-attacks glow red. Note - When trogar is affected by multiple totems, the three colors swirl together in both his auto-attacks and staff.
R - Latent Power - http://www.hiveworkshop.com/forums/resource_images/14/icons_13591_btn.jpg Trogar pours all of his magical power into one of his totems, granting it the following effects: -Trogar gains 20/40/60 bonus Ability Power while in range. -Its abilities apply to all allies in range. -It's detonation radius is increased to 250/275/300. Mana Cost: 100 Cooldown: 100/90/80 Trogar and his projectiles have a faint white aura while in range. Allies have a faint aura of the color of the totem used.
Champion Select - "Let me show you troll magic!"
Moving
"Better than moving across ice that's for sure"
"Keep moving."
"Strong magic there."
"...What, were you expecting some troll pun?"
"grumbling to self I'll show them."
"grumbling to self vaguely about magic"
"Sure, I'll go."
Attacking
"Taste troll magic!"
"Not so scary now!"
"Ahaha, strength isn't everything!"
"Who's laughing now?"
Taunt - Looks intently at his staff
"You've never seen anything like this!"
"What, is my magic too smart for you?" ~ Near enemy
"Hextech better than my magic? Sure (sarcastically)" ~ Near enemy
"You are not my king, and I am not your subject." ~ Near enemy
"Tell me your secrets, and I'll tell you mine." ~ Near enemy
Joke - Drops his staff and starts attempting to scratch his back.
"What? I'm still a troll!"
Laugh - Hesitant chuckle
Friends -
Enemies -

Thanks for reading! As always, I really appreciate any comments, corrections or criticisms.
style 5-rank R ability? this looks like a great candidate for that.