User blog comment:TheTobarMethod/My Fix for AP Ez/@comment-4652200-20130324184607

The buffs, needed to make AP Ezreal viable without making AD Ez OP, should be targeted very carefully as to not affect (or affect very little) base damage, ranges, CDs and the general utility of Ezreal.

For example:
 * flat or % MR reduction on W for enemies hit
 * some utility benefiting only AP on his passive