Ezreal Ability (LoL): Mystic Shot

No, it doesn't crit. On-hit and lifesteal, yes. But no crits.

Can this crit? or does it only apply on-hit effects?
also, if you have the on-hit masteries, the ones about giving bonus AA damage when you hit with a basic attack, and you hit a champ with this, what will it proc? the AA bonus or the spell bonus?

This is also like a basic attack,although it only applies on hit effects.

I think that this should be able to crit

Still AD carry Bottom Ezreal was more picked in rankeds. That ability allows Ezreal to farm Lane versus Vayne, Blitzcrank, Leona.

This plus GunBlade = enemy's death ^^