(This build will color code things on a scale where GREEN=GOOD BLUE=LESS THAN GOOD BUT NOT BA AT ALL, ORANGE=ALRIGHT YELLOW=RISKY RED=BAD VIOLET=OPTIONAL)
This is an Urgot build..obviously.
Some little stuff about Urgot:
I assume the name "Urgot" came from the word "Ergot" or "Argot" meaning-
1. A disease of rye and other cereal grasses, caused by a fungus of the genus Claviceps
2. A specialized idiomatic vocabulary peculiar to a particular class or group of people, especially that of an underworld group, devised for private communication and identification
Also Urgot is a fat robot

RUNES-
The runes are simply just for damage and penetration...TWSS


MASTERIES-
Anyway, the masteries just help you get a little more spells out with more damage, but the interesting thing is the 9 in defensive tree, this gives a little survivability but as well gives you a lot of health regen (41.1 to be exact) which helps late game. A LOT


SUMMONER SPELLS-

EXHAUST is nice because of the effect of slowing that stacks with Urgots, W-to-Q slow, and the that the 70% damage reduction stacks with Urgots passive, making the enemy champion do only 15% of their damage output...not overpowered at all

FLASH is great with Urgots ultimate, which takes a champian, stunns them in place while a cast goes off (during this cast Urgot has more armor and Magic Resistance) and then switches the two champions places. Then i will flash to get a good distance or spot while they are slowed because of the ultimate after effect and Urgots W-to-Q slow. AND flash is nice with a gank where you can use the Urgot ultimate on the farthest champion to your destination and flash as well to get even farther away from the gankers.

HEAL is not that necessary with elixirs used correctly, can help but not in my preference

GHOST can be helpful with escaping and engaging but i just don't see the need for that spell when, with flash, you can flash past a wall and get away easier.

REVIVE no use what soever unless you plan on dieing...a lot...

SMITE well Urgots NOT a good jungler, so i don't see a use

TELEPORT this can work well if you like to gank and you can get to a lane vary quickly through a ward in a bush

CLEANSE this is ABSOLUTELY not necessary for any circumstance with Urgot

FORTIFY pretty good if you are an excellent "kite-er" otherwise useless without the masterie for splash damage in my opinion

CLARITY can be useful because Urgot can run out of mana quickly, but that is covered by the 200 mana in the beginning with a crystal

IGNITE not that useful unless you know you will face a life steal or health-based champion

RALLY only useful for a vary short amount of time for the extra AD but otherwise useless, plus the cool down is insane

CLAIRVOYANCE this is vary useful when solo-laning if you don't trust your teammates to call "MIA" like when joining a match by yourself, otherwise its a waste

BUILD-
This build gives you exactly what you need, attack damage, attack speed, and just the right amount of survivability. THE KEY IS THE ELIXIR OF FORTITUDE!! I always have this active and in replace of the HEAL summoner spell, note that when using this elixir that the health is INSTANTLY granted when drinking for a nice "surprise". Also as i said, the 41.1 health regen helps immensely so therefore manamune is NEEDED due to the damage also given

SKILL SEQUENCE-
Urgots main attack is the Q ability. No doubt about that. The thing you need to know about the "Needle" or "chainsaw" is that when you have you shield up and active around you, the Q ability slows the enemy hit, depending on the rank. Don't forget Urgots passive, an enemy hit by Urgot does 15% less damage, this works with the Q, E, R, and auto-attacks. The most important harassment move is the E, if the grenade hits a target, place your curser over that specific champion or minion and hit the Q, this will guide the Q ability to hit that target with tons of range. Please note though that in the beginning of the game, only 3 Q's will be able to hit if your quick,but 4 if you have 35%-40% cool down reduction and be sure to BE QUICK with the Q, or you will miss the opportunity for that 3'rd hit. Lastly be sure to use you R to single out one champion but be careful of any SILENCES, or MOVING FORCED ABILITIES while casting your ultimate.

The good, the bad, and the fat Urgot...cleaver ain't I?

PROS-
Destroys most champions earlier game
Passive scales with exhaust
Shield slow scales with exhaust
Immense range with the Grenade-to-3 Needles-combo
Outputs a lot of damage
The ability to single out a champion with the ULTIMATE
Many people will complain how Urgot needs to be "nerfed" and how he is Overpowered

CONS-
Squishy without the correct items (like those in this build)
Urgot gets worse as time progresses unless he is "fed"
Towards the end of the game, Urgots amazing or useless
Usually the target of team battles
Hard to play if you don't understand the Shield side effects and the Grenade side effects

AKALI just be careful of the dash

ALISTAR be careful of the movement he forces upon you while ulting

AMUMU his pull gets anoying as well as his ult wiht cirtain lane-ers

ANIVIA easy peasy , vary squishy

ANNIE the stun is annoying, and the damage is unbearable

ASHE slows can be a problem, otherwise easy

BLITZCRANK vary annoying pull, disorientates me a lot

BRAND nuking is hard on Urgot, takes too much damage

CAITLYN She can output a lot of damage if your not careful

CASSIOPEIA

CHO'GATH this is alright to lane against, but can be a nuance
CORKI squishy but outputs alot of damage

DR.MUNDO too easy
EVELYNN stealth will kill you a lot

EZREAL squishy but can be sneaky
FIDDLESTICKS most annoying champ, he can do some damage but is vary durrable due to Life Drain

GALIO ap and mr= win vs Urgot

GANGPLANK And do alot of damage if your not careful enuf
GAREN alright sometimes, depends on your playstyle

GRAGAS vary easy to lane against, be careful of the big barral though

HEIMERDINGER easy sauce

IRELIA always easy for me, i dont see a problem

JANNA support=too easy

JARVAN can be a nusance, but not a problem

JAX hes op, nuff said

KARMA she has a shield that takes 1-2 Q's..anoying at most

KARTHUS he is a big nusance with the Q's and ulti

KASSADIN never nice to me :[

KATARINA Also hates me :[ shes op too

KAYLE support that does alot of damage, sometimes nice to lane with if shes stupid

KENNEN deppends, ap is hard, ad/as is easy

KOG'MAW he is always annoying with his auto attack range
LEBLANC squishy with mere damage

LEESIN can be hard

LUX annoying but stupid ones are easy pray

MALPHITE same as lux

MALZAHAR defencive ones are annoying, aggressive ones are easier

MAOKAI too easy, tank

MASTERYI squishy and bad

MISSFORTUNE outputs a lot of damage but so easy to kill

MORDEKAISER hes op with the shiel, nuff said

MORGANA snare hurts the harrasement for Urgot

NASUS easy enuf

NIDALEE Spears are a pain, squishy otherwise

NOCTURNE never nice

NUNU heals easy, iceballs annoying, bad otherwise

OLAF vary easy to kill, BUT the Urgot ulti can be wasted during his ult

PANTHEON stuns annoying, bout it

POPPY same as pantheon

RAMMUS he is anti ad, Urgots all ad, :[

RENEKTON Hard hitter vs Urgot

RUMBLE getting close is a bad idea and ulti can kill alot, but squishy otherwise

RYZE squishy and mere damage early on

SHACO stealth is annoying

SHEN Taunt can break stratagies, bout it

SINGED Poision is the only bad thing about him

SION stuns anoying

SIVIR rapes your minions, squishy otherwise

SONA no damage output but sturdy

SORAKA same as sona but with a little more damage output

SWAIN hard vs that snare and ulti, extreamly easy otherwise

TARIC stuns annoying, bout it

TEEMO shorroms are the only thing bad vs'ing him

TRISTANA rockets to youand her ult is annoying, bout it

TRUNDLE alright damage, easy for harrasing

TRYNDAMERE op and annoying in all ways

TWISTEDFATE lots of damage output and ult is tricky allong with the Yellow card stun

TWITCH stealth is a big problem, slows and ultis annoying

UDYR too much damage output

URGOT up to you to take the challange!!!

VAYNE squishy enuf for harrasing, lots of dammage from her though

VEIGAR too easy, no damage form him

VLADIMIR easy to harrass and Urgot passive shuts him down

WARWICK hard to harras, but low damage if your carefull

XINZHAO always a hard hitter and hard to harass

ZILEAN simple and squishy