Hey its trail once more , i watched on YT , for a jayce guide , and i saw a vid from Tsunami , and i tried to play jayce in mid , the first games , i sucked hard . But even i played it some more , and i changed the build i bit , i saw why Jayce is op in mid . His combos are very hard . You need a big drop of skill to play him as midlaner :D gl & hf :D

The Magic resist Runes are normal as mid char
Attack Dmg. is for early dmg.
Armor pen is for Galio or an other tank in mid
Health is for bit taynkness later

You need Ad, but you need a little def , magic resist and health are the things you need .

Jayce is strong against in mid :
Ahri , Brand , Malzahar , Kennen , Kassadin , Karthus , Lux , Ryze and Vladimir
I think he is weak against
Leblanc , Cassiopeia , Heimerdinger , Fiddelsticks and Morgana

Cd is early very good , when you have blue you can spamm combos like a bawz , its op if you spamm you combo . your q does enough dmg.

The Combos are Canon : E, Q , Hammer q , w ,e
Hammer q , flash , e Canon e ,q , those combos work very well against meele mages , and chars with cc .

JAyce is a very good farmer , with 3 aoes :D my farm isnt good , cuase im harrasing hard , but , yeah its not bad :D

with a leesin and tristana you can play tennis :D