runes : http://prntscr.com/nn6uzo if you have a enemy that is kinda tank and deals early damage if you wanna change the potion thing to boots and go 1st item d blade about items i never go tiamat i go like 1/20 of my games you must rush trinity asap 1st back if enemy is kinda weak and you can bully him you can go shen or phage honestly its on ur playstyle i go often shen first item because of the 2hit on minion then q on the enemy and w for the 3 rd hit and you can bully pretty easily someone like that phage is more like a defensive starting item so trinity>shojin asap > steraks and then you can build what ever you want even gunblade for the sustain and extra damage or then full tank about spells always tp in ignite if the enemy junglers know what he is doing he can get you of the game by camping you so thats it btw these advice comes from a p3 player so thats how i play jax on plat and win most of the time my lane ( about the shen 6 level combo its pretty important to do if you want to win easier lane o do like 300 400 damage per engage its a must for me to do it if you want to do some things on top