How to play Jayce

apply face to keyboard.

lol he works with buffs just keep being in shoot mode put down the fence often and shoot trough it for further range and more damage and when they are almost dead switch to hammer and finish..... just build him adc ish + tanky^^

as i said apply face to keyboard XD

Poke down in cannon form using autos and Q E combo. Then for an all in combo click W in cannon but immediately swap to hammer form and use Q to gap close and the extra attack speed to get off 3 autos. Then either use E to execute or to knock away if you can't fully kill them. Use hammer forms W passive to regain mana in lane phase

Basically swap between the two forms often. The first hit on a form swap deals extra damage/shreds armor. Basically get into cannon form, auto once, E+Q combo, W (auto 3x), swap forms, Q to close gap, auto for bonus damage and E them away and win the trade. Or you can E before the auto and knock them backwards. Or you can E one of their allies away from them as a self peel.