First of all, I only played this game for a week now. I've been using Singed for like 4 to 5 days, I was inspired of the ''His Chemical Romance Guide'' . Very Helpful guide, but I asked a friend after I was used to the gameplay if there was a weapon or a item that leech health from magic using, he told me Hextech gunblade. So I tried it today, and I was on a Killing Spree, Killed 25 bots on one game. So here is my first guide.

This is a try, boost AP max, and spell vamp to help have always full hp after an attack. And maximising damage done, have more HP replenished.

I'm not sure if it's the right order, but you must know that Fling must be the first, after that you must up Poison trail the fastest as you can, alternating with fling. When you can, up Insanity potion and in the end mega adesive.

Ok Singed have a great potential on farming and pushing, tanking and killing champions.
Since Poison trail is good when you reach lvl 4 you just run around minions and collect money really fast. At the early game it is best to kill the champions or just make them return to base so they can't level up faster than you. Just play chicken a little bit. After that, when you get to lvl 6 and up, now you can kill easier. Just use insanity potion to boost your stats, start poison trail and click on fling and attack a champion, afterwards just attack them. basicaly this is the way you kill easy with singed. you can always run back to your base with poison trail on so the enemies will die eventualy or leave you alone early. Don't forget if you are low on health or mana, return to base as soon as you can, because on early game, mana and health regen are really low. when you get archangel staff, you'll get a boost of mana regen. But since you have 20% spell vamp you don't really need health regen.

Ok right now, I'll be testing it more often and refine this guide, but it play well vs AI, didn't test this build vs player since i'm only lvl 11. Please be gentle on your comments since as I want you to remember, this is my first guide. Thank you.