This is not a Fun build i used it once and did not finished id i got only the 1 stab and the hat that was it the enemy gave up now i want to research my build and share it with you also.

The info that is showed up at the top where the Character is and the written ammount of AP is also the Mana is not correct. I mean NOTHING is there Correct i have to calculate everything again and will tell you the important things like Mana, AP , Magic-Pen., MP5, Movement speed ( while Ghost)

This Masteries build-up is the best for Fiddle because you get with the 9 in Attack 15% Magic-Penetration. and 21 in Magic. Fiddle dont need any of those Defensive thing.

I think Mana Runes are the best for the items. Let me show you this in Mathematical way:
Greater Mark of Knowledge x9 (each 21.06 at lv. 18) = 189.06 costs 410 points each 410 x 9 = 3690
Greater Seal of Knowledge x9 (each 21.06 at lv. 18) = 189.06 costs 410 points each 410 x 9 = 3690
Greater Glyph of Knowledge x9 (each 25.56 at lv. 18) = 230.04 costs 410 points each 410 x 9 = 3690
Greater Quintessence of Force x3 (each 75.06 at lv. 18) = 225.18 costs 515 points each 515 x 3 = 1545

TOTAL AMMOUNT = 833.34

Total Ammount Points = 12615 = each winning match about 150 points 84 winning Matches = about 45 minutes each = 63 hours of play and you got your ULTIMATE AP Fiddlestick. I will also buy one of the skins.

x5 (each 400 mana, 45 AP and +3% AP) = 2000 Mana (+ 1000 Mana after 250 Spells) + 15% AP + 225 APx1 = 155 AP and +30% AP

Subtotal Ammount Mana = 2000 Mana (+1000 Mana after 250 Spells) + 5% Mana from Skilling Tree
Subtotal Ammount AP = 380AP (+ 15% of mana + 30% AP) + 10.6 AP from Skilling Tree
Subtotal Ammount MP5 = +125 MP5 (+ 5 MP5 from Skill tree)

Total Ammount of Mana = 1313 + 2000 + (1000) + 833.34 from Runes + 5% = 4353.65 (if 250 spells 5403.66) Mana at lv 18

Total ammount of AP = 380 + 10.6 + 15% of mana + 30% = 1356.74 AP (if you did 250 spells 1561.5 AP )

Total Ammount of AP = 130 + 2.5 + 6% from skill tree = 140.45 MP5 (1000 Mana in 36 second)

Try to get 250 Spells as fast as enough spell at junge fear drain dark wind thats 3 spells each needs about 8 seconds so count 3 on 8 second we need then 84 times 8 second thats 672 seconds about 10 minute focused work and you get at the end 1561.5 AP Just imagine that! Spell explain with the AP just calculated.

I Choose(Clarity) for Mana and(Exhaust) to Drain the last drop Blood out of the Enemy.

Terrify will only be helpful at lv. 18 and the Calculated Ammount of AP.
Drain on lv 5 = costs 120 mana and does 160 + 48% AP Magic Damage per SECOND to the enemy for 5 SECONDS. Lets Calculate without the 250 Spells ammount and with it.

Without 250 Spells = 160 + 651.24 = 811.24 Damage per SECONDS. Total 5 x 811.24 = 4056.2 DMG5

With 250 Spells = 160 + 749.52 = 909.52 DMG per Second ?!?! Total 5 x 909.52 = 4547.6 DMG5

Dark Wind on lv. 5 = costs 130 Mana and does 100 + 35$ AP Magic Damage per hit Bounce 10 Times. That means when that you can maximal hit one person 5 times Imagine that there are only 2 Champions and you hit the spell between them two i am talking about no mobs nothing only 2 Champs trying to stun kill whatever you and you spelled it at them... now Calculation Time.

Without 250 Spells = 100 + 474.86 = 574.86 Damage per HIT. Total 5 x 574.86 = 2874.3 DMG5

With 250 Spells = 100 + 546.5 = 646.5 Damage per HIT ?!?! Total 5 x 646.5 = 3232.6 DMG by the Maximal 5 HITs
Crowstorm on lv. 3 = costs 250 Mana and does 350 + 35% AP Magic Damage PER SECOND for 5 Seconds in the Area.

Without 250 Spells = 350 + 474.86 = 824.86 Damage per HIT. Total 5 x 574.86 = 4124.3 DMG5

With 250 Spells = 350 + 546.5 = 896.5 Damage per HIT ?!?! Total 5 x 646.5 = 3232.6 DMG by the Maximal 5 HITs

You can do the Baron alone with no Problems because you got 3923 Healing what you need more ? Doing damage at the same time when you really need the baron in seconds Crown storm Drain and the second Drain thats it he has only 11k or 12k life the Big Golem that give you extra manareg and AP means that you're going to be the ULTIMATE AP FIDDLESTICK everyone in the game is going to flame at you calling you a Cheater and will leave the game when you got every thing told you.

The only one thing is you need 17875 Gold that means when 1 mob give you 30 gold its 595 mobs. So you really need some kills maybe 3 for 2k gold so thats about 24 kills or make it 12 kills then you got 4 x 2k = 8k - 18k = 10k now you only need 333 mobs its easy. and try to kill champions as fast as possible you need the firstat level 6 so the enemy will try to go arround you or wait until you go back because you got the right AP for a level 6 :) ( and no figure it out by yourself :P).

Pros = See up at the Unique Skill part

Cons = Needs about 18k gold and he is not very fast. I mean a Nuclear Rocket is also not Fast and destroys a Whole city in seconds so if you want to be fast geht the ghost and exhaust or Clarity and Ghost. Your Choice with the Summoner Skills. Me will use Ghost i want to be fast sometimes so. here the Calculation of the Movement speed in Ghost

300 + 14 seconds 27% = 381 Movement speed. Its slow for end gaming but fast enough for the beginning.

Thank you for Reading.

Please leave your comment i appreciate that very much.

Thank you very much again :) and Good luck with the Built-up of my Fiddlestick :D