I love playing AP Ezreal and have half my Q deal physical damage instead of magic damage
thus not helping me with MR Pen.
So cool.
...
At least, give Lich Bane a magic damage convert, so he won't buy Runeglaive and abuse purple smite wave-clear with it and has to buy a 3000g item to be more efficient.
That's the only buff I would love to see for AP Ezreal.