With this build up you will pump Razor for early mid dominance over the opposing team with constant ganking and moving trough the lines trying to wreck their late game and why not just help your mates to win a fast game.
SKILL PROGRESSION
lvl 1 Plasma Field
lvl 2 Static Link
lvl 3 Plasma Field
lvl 4 Static Link
lvl 5 Plasma Field
lvl 6 Eye of the Storm
lvl 7 Plasma Field
lvl 8 Static Link
lvl 9 Static Link
lvl 10 Unstable Current
lvl 11 Eye of the Storm
lvl 12 Unstable Current
lvl 13 Unstable Current
lvl 14 Unstable Current
lvl 15 stats
lvl 16 Eye of the Storm
lvls 17-25 stats
Plasma Field is maxed first coz is the best tool you have to make some cash and you`ll definitely need it to buy your first killing items.Static Link is maxed too coz you`ll be a killer from early on and Unstable Current is delayed coz you`ll be getting a MS increase item.Again your ultimate is leveled every time possible.
early to mid game items
Vanguard and MoM will give you loads of attack and movement speed and good tanking ability for early and mid stages of the game and with them you can jungle very effectively and wait for a killing situation to occur.They are really the corner stone on which you`ll build your early mid game coz they give you everything you need to support your most deadly skill - Static Link.With them you`ll be hard tanked, fast moving, fast hitting killing machine that also steals high quantities of life if you can come with a good Static Link and you`ll get a sure kill... I can advice you to not be impatient and the first 4-5 secs just to follow your target with activated Static Link and Eye of the Storm and after that to unleash the Berserk active from MoM...
Bottle is picked for regen purposes/obtaining runes and will be enough coz you won`t be spamming lots of spells and TP Scrolls are for better mobility... Clarity Potions again if you have mana problems - it`s not a bad idea to have one or two just in case.
Obtaining those items you should be constantly moving picking runes, ganking, jungling and farming if there is a free line and helping your team in big battles.
mid game items
Power Treads are for more dmg output and EHP boost.(again you can pick BoT instead if you wish but this will slow you down in getting your next item and it is a big one so...) Next you`ll gradually begin to build up your Eye of Skadi and when you complete it you`ll have all the mana you need,good EHP boost,some additional dps and a very effective slow to chase your enemies and support your Static Link.
late game finisher
The Assault Cuirass will really tank you well(pick Plate Mail first) and give you excellent damage output coz the lowering armor aura has a good synergy with your ultimate(you will also reduce enemies armor for your whole team) and the IAS you`ll get from it will be useful if you can get a good Static Link. I consider it to be much better than Butterfly with the low armor you have from your current items - any hero with MKB will just rape you coz he will ignore the Evasion from it...
afterword for part three
Well you`ll be just a hunter seeking prey with your good tank, high mobility and attack speed and when you get your Skadi it will be really hard for enemies to escape or kill you coz you`ll get an easy Static Link for most of the time and you`ll be pumped with loads of hp.This is really a solo killer build and you`ll help your team by just eliminating enemies...
some rejected items
Well they will help you get a good Static Link but the thing is that they offer you no protection so a +200dmg on a paper hero is bad for me...
Images don`t get the bonus from static and they will be very fragile coz this item gives you minimal survivability.
Well you`ll be able to dodge some spells(do you need it when anyone using spells on you is purged...?) gives you decent tank and infinite spam of your spells but I think that Shiva is clearly superior in terms of being a team item that gives you slowing aoe nuke and also nice tank and mana for using your skills.
Good EHP boost,regeneration and infinite spam of your spells but beside that it offers nothing more... there are much better items for Razor in my opinion.
Cuirass or Mjollnir(after obraining HoT) are just better team items...
You have an excellent skill that boost your raw damage so those items are not needed at all and they will make you a paper hero who dies before he can utilize his powers.
guide afterwords
Well I think I was able to show how interesting and versatile hero Razor can be by fitting different roles.The main idea of the three builds however is much the same - Razor`s signature skill - Static Link just demands to tank him(getting a good Static means that you`re bond to your target so you`ll move with it and will be hit in the process...) and get some MS improving or slowing items so I have tried to achieve that without sacrificing too much of his damage potential - the thing is you`ll need only some attack speed if you get a good Static and I have put my efforts to builds that ease you in that direction.
Razor however I think is a tricky hero that needs mastering so I will try to give some general advices on how to use his skills most effectively. In general I can say that if you`re not going to carry and got your HoT it is better to stay in the backyard and wait for all the aoe damage, stuns and slows to be used by the opposing team and then to enter the battle... yes you obtained items that tank you well but their purpose is not to be the team tank but to give you survivability when trying to get a good Static Link and not die fast after that. After you enter the battle you should choose someone that is not heavily concentrated by your team coz he will die fast. Try to put Static Link on an enemy dps-er coz this way you not only will pump your damage but you will also disable him and do not ever use your Static on hero with good escape mechanism! Try to delay the use of your Shiva or MoM after a 4-5 seconds when you put static link on someone, move with him and after that use Arctic Blast or Berserk and start hitting him.Concerning Shiva in fights where lots of creeps are present even that I said it is better to delay its use I think it is better to immediately nuke with Plasma Field and Arctic Blast after you enter to clear them so your ultimate starts hitting enemy heroes not creeps...
Plasma Field is your nuke that you should use for farming, harassing, killing enemies or eliminating creeps for your ultimate to start hit enemy heroes immediately. Damage is low when you hit at close range so try to use it when enemies or creeps are around 500-600 distance from you.(you can kill a ranged creeps with good positioning)
Unstable Current will give you nice survivability coz anyone trying to use point click spell on you and stun/slow you will be purged and will help you in chasing or escaping from hard situations. Also helps you in getting a good Static Link against a hero with stun coz if he stuns you he`ll be purged and the Static Link will probably not be lost.
For Eye of the Storm to be effective when creeps are present use Plasma Field and Arctic Blast if you have Shiva so it starts hitting enemy heroes immediately. After chasing a while with Static Link and this skill reduces enemy armor quite fast then every hit you make will be like critical... Very good ultimate and you`ll probably get some bonus kills from it in large clashes.Use it wisely and try to gang every time it`s cooled coz it deals massive damage if you can trap/chase a single hero...