ok early game just harrass them with your e spell then get your drain spell to 3 then get your fear up to 2. after that max your drain, and max your fear of course getting your ultimate upgraded whenever you can. this works well with 1v1 because when they are feared you can basically drain alot of their health after you have it upgraded to 2 or 3 you can actually kill them and if they are a healer use your iginte if you think you can kill them just learn different combos with your ignite, drain, fear, and your silence. just be careful vs people with stuns such as veiger or brand they can get you before you are able to fear and get your health back. whenever you can fear them first before they stun you then drain will do the rest and then if they continue to stick around which usually they are dead by then but 90% of the time they always will flash away that is why i choose ignite over ghost or teleport. ignite has gotten me so many kills as fiddle. also fiddle is alot of fun to use against people who dive you at your turret. let them hit you once as long as it isnt' going to be fatal then fear them and begin to drain and use ignite. if you are vs a low hp champ then they are already dead and you have hp again lol making them quite angry and usually calling you op. I am not joking when i use fiddle he is called the most OP champ in the game.

well i start off with the ring it's just nice not being squishy and having mana regen at the same time. then i get brown boots and sometimes i will finish them into sorcerers but every once in awhile depending on my money i will start getting rod of ages parts before finishing my boots. like if i'm having trouble with not having enough mana then i will get mana crystal before finishing my boots. then I usually go for rabadons and if you are doing well you will rarely get to finish this item but when you do you can basically own anyone. then hourglass and void staff. the last 2 items if you are doing well you will have some play with depending on what you need i usually go void staff but thats if i'm vs stronger champs which i usually am and guardian angel makes it so that if you die you can just fear a person and run if it's a 1v1 like vs a tyrnd late game.

pros: very good ganker
can jungle as well
very good in 2v1 when you have to solo becasue of another jungler
and also very good against stupid ults like karthus able to heal quickly if by mininos if his ult would be fatal.(karthus is one of my 3 most hated champs other 2 being teemo and morde lol)

cons:when focused easily killed
and not really a nuker people with flash and stuns are sometimes difficult when they can use them well.

in teamfights stay behind your allies let your tanks and others go in first when they commence ult in where no one can see you preferably and try to hit their weakest targets with your ult like the nukers and dps. if you can try and fear a dps that will delay them from doing any damage and try and drain someone with enough hp that will let you be able to get some health from it. NOW if you take concentrated damage from people and you have hourglass now is a very good time to use it i feel like hourglass was almost made for him because that will make them not focus you or they will just use their spells and stuns on you while you are unable to take damage.