Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
I have been playing this dude for a while. How everyone explains game play with this dude I agree. I recently tried something new; JUNGLE after level 2.
Start on the side with the Dogs. After you reach level two start the jungling process. Dogs, port, casters, port, golems, port, dogs (will be back) then move to casters . . . you get the idea. Do this until you have the catalyst and you are lvl 5 and close to level 6
I also stack AP. If you are good at running usually you can get away from most attacks, however if you get ganked you are dead anyways, so might as well do some damage, just my opinion.
The other person gets huge benefits by soloing a side lane. They level up faster and earn money quicker. This way when you return you have built up some HP and mana and you can assist them when they use their ult.
You won't die. Singed is terrible early game, especially with ranged persons. Once you build a solid foundation you can return and help own people. Plus by leveling slower you get the ability to use the catalyst more effectively. When you return you are level 5 typically I will be attacking someone; level; pop the ult and finish the attack.