Not Updated For Current Season
So this is my first published build but its the singed build I use, it has a lot of ablity to dominate lanes by running through a horde of minions late game and can farm amazingly at any level regardless, I do play a lot more 3v3s than 5v5s but this build work amazingly regardless,
I always open with 2 health pots and a mana crystal, the mana crystal helps you maintain mana longer in the early game and later turns in to the archangel's staff, a key item to this build, I've seen a lot of builds go into the rod of ages, I just never have found it to be as effective as the archangels right off the bat.
play defensively until level 6 when you get your ult and use it to regain health and mana, if at any point you see your enemy laner around 2 to 3 bars of health run up fling them back with your gas on and hit them a few times , if it doesn't kill them out right their running away should, don't be afraid to use ignite as a harassing tool, most people think that if you ignite them your going in for the attack.the same goes for the mega adhesive, its an amazing taunt method.
This build does a lot of running away, if you don't like running away don't play it but once you hit late game and have big enough mana regen/mana pool you can leave the gas on almost always and slaughter minions and players for hours on end.
I have never gone beyond 40 minutes with this build so I dont really know how well the later items work but the spell vamp procs of the fling which turns into the ball park of 500 to 600 damage with relative ease. If you have any questions ask in the comments Good luck and have fun.