hello and i hope you enjoy this guide.

The reason i have created this guide is to ensure the success of wining games with the new amazing champion that i have found and had some fun harassing the enemy team with.
I think Jayce is a very unique champion as he is both ranged Carry, and Melee Pusher with his unique ulti Mercury Hammer

I have selected the runes above as they are my standard full ad runes for ranged carry or melee champion fighter.

The runes gives the user outstanding attack damage and the ability to harass and opposing champion that may come across your path as ether jungling or just laning.

The runes can be a bit outrageous as they give you no defence what so ever aganist heavy fighter or tanks.

These masteries are the masteries that use for my full ad champions such as Varus, sirvir, Sion and now Jayce, The can be very good aganist low defence carry and support, but also very risky aganist full tanks as it has now defence what so ever.

These are the chosen items for my master yi built which gives extreeme damage, life steal and attack speed for a quick recovery, you want to change between 2 phanton dancers to 1 phanton dancer and 1 Black Clever which can be helpfull to reduce the opposing team armor for a better advantage.

The skill sequence that i have chosen is the one that i think is the best suited for jayce as get good defence ability and even greater attack ability, when using To the Skies and Thundering blow which are the Two Best abilities of Jayce The Defender of Tomorow.

The primary two abilty that i recommed to use for Jayce are Heal and Exhaust.

This build is a bit risky depending on the opposing champions, the use of heal lets you stay longer on lanes so that you will be able to buy b.f sword at the first 6-7 minutes of the game, the use of exhaust lets you get away from risky situation and reduces the enemy champion's armor by ten with the right masteries and good attack damage

Pros

Very High Attack attack damage
100% harassment
easy last hitting
Stay longer in lanes
lets you shift between ultimates for extra damage and Defence (armor, magic resist and movement speed)
easy escape using thundering blow and acceleration gate
number of kills 5-10
successful ganking with teamwork

Cons

Very low armor and magic resist
Very risky and squishy built
number of deaths between 3-5
no flash so eascaping from ganks might fail.