i usually go mid with ezreal i think it is a easy way to get a good game in mid becouse of your combo with you E and then aim your Q. You will not be able to do that in top or bot lane becouse it is 2v2.

i take dorans blade for some nice damage at lvl 1, then i usually buy a sheen becouse of the extra damage, the sorcer´s shoes is for some more damage with my W. The lich bane is becouse i want some more AP for my W and ulti. phantom dancer is for some more attack speed and crit.. it is always good on ezreal, trinity force is just a "must have" item on ezreal.

I take flash becouse i like the "get away method" with flash and E.
The ignite is for finishing off kills that i usually would not have got.