buy runes first for the position you think youll be finding yourself playing the most and like the most.
I always use 2 movespeed quints then full armor/MR on Jax. Attack speed marks/quints with armor yellow for jungle. I just opt for easy farming as I only play Jax to snowball hard late and not dieing quite so fast may get me there. He has basically replaced Nasus' roll in my books.
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