I'm going to skip introductions and all that mumbo jumbo, this build is for fun, and although you can play it in ranked, this is better suited for normals and customs.

Earlygame, you want to focus on farming with your E, and harassing the enemy laner. Use your windwall to block skillshots, like Ahri's Charm, and try to have a nice lane freeze. On your first back, try to purchase the hextech revolver, this will give you some good burst.

When you return to lane, keep the wave centered / closer to your tower, and try to land some sneaky E's on the enemy laner while also putting your ferver to good use with your Q. At level 6, with the revolver, dash twice for the bonus damage, then you can dash (flash if needed) into them, use your tornado, autoattack, ignite, then ult, then finish them off with another Q auto after the ult. This should do an immense amount of damage with the burst from revolver, ignite, your ult, and fully stacked dash.

This can help build up your lead, look for roams down to botlane, as they generally have less MR and health, which your dash does very nicely against.

Your damage output is still going to be very strong, and you can build leads for your team with fast bursts with the same, Hextech Gunblade, Ignite, Ult, Spellblade, etc. During teamfights, stack up your dash, and target their carry (normally the midlaner or ADC). Try to avoid fighting beefier toplaners, as they can take your burst, however, the rageblade and trinity force help with sustained damage if needed.

Nearing / after full build, you will still have lots of burst, but the AP side tends to start falling off. Continue to target the backline by dashing twice through the tanks / supports, and then ult burst their carry. After that, you can decide to fall back or continue outputting damage with your rageblade. Just keep in mind that you are going to be quite squishy.