Hello guys! Im TehBirri here with a Jayce build.

Pros:
-Good ADC
-Can be played tank and ADC
-Great ganker
-Amazing poker in level two.

Cons:
-Cannot be played AP.
-Cannot carry a game alone without being really fed.

Ignite: Ignite is a pretty basic summoner spells which is good for getting kills with if enemies are low on hp.

Flash: Flash is great for getting away if your almost getting killed.

I choosed some basic AD Runes for easy startgame.

The items im using on Jayce is good and basic adc items.
Jayce can be played tanky with another build.

The masteries are pretty good only AD Masteries and you may get a pretty good start with these masteries combined with the runes it is pretty easy to get a good start/getting feeded at the start.

Jayce is a good farmer in "Mercury Cannon" form with the "Hyper Charge" spell on.

Jayce is a good ADC/Tank in general.