Oh, that. That isn't a mistake, so let me explain. AD Ezreal is not a normal ADC, as he doesn't rely as much on crits/attack speed. Instead, he relies on his Q poke, mobility, and his AOE ult. Most of his damage output is still magical, even though he's building AD, such as the damage from his flash, his W, and his ultimate, which are important parts of his early-game burst. As Ezreal functions on these precious cooldowns, CDR is more important to him then attack speed.

You put masteries into cdr and magic penetration on AD Ezreal.

Thank you for telling me what is wrong, and I will try to fix it. However, I looked at my masteries section and I don't notice the flaw. Can someone please tell me what it is?

I see it. -1.

Well, the looks of this guide certainly isn't flattering...

Jeez...the masteries section in the cheatsheet has a gigantic, obvious, and utterly stupid flaw in it and it still hasn't been changed.

Also, no C2V.

First off, put your Pros & Cons into one section. Second, put "greater" in front of your rune codings (with out quotation marks of course) to make them look like the runes you want. Otherwise they will look like tier 1 runes like right now. Third, I can't see some of your pictures for some reason.

Not upvoting or downvoting yet, good luck with the guide though! :)