This is a champion concept that I am drew partially from Bleach and partially from the concept of the iaijutsu duel. This is meant to be a lightly-armored, hard-hitting, champion that values patience and positioning to be successful. Without further ado, I give you...
Raiken, the Iaijutsu Master
Health - 390+80/level (1830 at 18)
Health Regen - 6.95+.55/level/5 secs (16.85/5 secs at 18)
Mana - 200+45/level (1010 at 18)
Mana Regen - 6.9+.6/level/5 secs (17.7/5 secs at 18)
Attack Damage - 50+3.25/level (108.5 at 18)
Speed - 325
Armor - 18+4/level (90 at 18)
Magic Resist - 30
If Raiken goes 6 seconds without attacking or using an ability, he sheathes his sword. The next time he autoattacks, he deals bonus damage equal to .5 AP magic damage. *Note that the base sword strike still deals physical damage, while the extra magic damage is a separate damage packet.*
-Q Skill Shot-
Mana Cost - 50
Range - 250
Raiken dashes to the targeted location, dealing damage to all enemies his passes through on his way there for 40/80/120/160/200(.5 AP) physical damage. If his sword was sheathed when he activated this ability, he may recast it within 3 seconds of the initial cast and the damage dealt is magic damage.
Move as Shadow
Mana Cost - 50
Raiken is stealthed for .5/1/1.5/2/2.5/3 seconds. If Raiken's sword was sheathed when this ability was activated, his next attack from stealth pops the opponent up and deals 40/80/120/160/200(.65 AP) magic damage (use of this attack does not also trigger the damage from his passive).
Strike from Void
Mana Cost - 75
Range - melee
CD 12 seconds
Raiken strikes for the vulnerabilities in an opponent's defense, dealing bonus damage equal to 50/100/150/200/250 (.4 target's AR) physical damage and lowering their armor by 25% for 3 seconds. If his sword was sheathed when he activated this ability, the damage becomes magic damage, is increased by (.4 target's MR), and also reduces the target's MR by 25% for 3 seconds.
One Strike, Two Cuts
Base Mana Cost - 50*
Activating this ability sheathes Raiken's blade and gives him 1 Ki charge. Ki charges are removed at a rate of 1 charge per 12/9/6 seconds. Raiken may only have a maximum of 3/6/9 Ki charges at one time.
*for each Ki Charge, the mana cost increases. Use the following table to determine the mana cost.
Ki Charges - Cost
0 - 50
1 - 100
3 - 200
4 - 250
5 - 300
6 - 350
7 - 400
8 - 450
9 - 500
*Contest of Will* - a possible alternate W
Raiken chooses a champion within 500 range and channels. As long as Raiken is channeling and the target is within range, they cannot attack or use abilities. This effect can last up to 5 seconds. If Raiken channels this spell to its full duration and his sword was sheathed when he activated this ability, his next attack against the target of this ability has its attack speed reduced by 10/20/30/40/50% and increases the length of cooldowns on any ability the target would use by 10/20/30/40/50% for 5 seconds.
*this is an ability I just thought up, please comment on what you think of this new ability as opposed to the others.*
As far as appearance is concerned, he would be dressed as though he were japanese nobility-no armor, just flowing robes. I envision long black hair and a regal bearing.
Born in Navori, one of the southern provinces of Ionia, Raiken's greatest ambition has always been to become the Elder of his province. Obtaining this lofty position is not easy however, and requires victory in a difficult competition called the Distinction. To that end, Raiken trained from a young age in the art of Iaijutsu; the art of focusing one's inner power and releasing it while simultaneously drawing and striking with a katana. He trained for hours every day, under tutelage of his father.
That was until the Noxian invasion. The southern provinces, Galrin, Navori, and Shon-Xan, were the first to fall to the Noxian invaders. As the war raged on, Ionia eventually pushed Noxus back to these three provinces, but was not, for a lengthy time able to reclaim them. During this time, all martially-inclined civilians were interred into labor camps. Raiken was too young at the time, but his father was not. During the occupation of Navori, Raiken practiced his art in secret with great fervor, hoping to one day pay back Noxus for the injustices and atrocities it dealt to his people.
When Ionia finally reclaimed it's southern provinces, Raiken's father never returned home. He is a man now driven by three goals: become the Elder of his battered province, find his father, and visit vengeance upon Noxus. However, his training was interrupted, his teacher, missing, and the new pact made with the League of Legends prevented him from acting against Noxus. Only one option was left to work towards all of these goals: join the League of Legends, a place where he could practice and perfect his art while punishing Noxians and hopefully find news of his father's whereabouts.
"My word is my life. You will atone for your sins." - Raiken, the Iaijutsu Master
So that's my idea. It's a very bursty/mobile/anti-tank melee mage essentially. If you have any questions on how his mechanics work or have any advice on how I can improve him (making the numbers more fair, help me develop some stats, or just tell me how much you wouldn't like to lane against him), just let me know.
11-3-11 - Reworded the ult to make it clearer, AP scaling reduced on Q,W, and E
12-6-11 - Added attributes and mana costs (balance is very similar to Katarina with a little bit of Trundle). Made the W ability more clear and put the spells in an easier to read format.
12-12-11 - Changed a couple of the attribute scales, reworked some of the abilities a bit (especially W), and added lore...
5-3-12 - Added a new possible ability and changed some wording to make things clearer.