<p>From: AfroSquirrel | #027
I think it's time to revisit my Lux build now that I'm getting a better concept of defense and defensepen.
Grab CDR masteries and runes, as well as blue buff when possible.
Boots+pots -> Double rings -> CDR boots and Void Staff -> Dcap -> whatever.</p>
<p>From: AfroSquirrel | #032
Well, that will let me swap to AD runes for last-hitting or something. What are some good choices for Reds on Lux aside from AD and Mpen?</p>
I'm not a fan, personally. Lux's cooldowns are long, but she's a burst mage more than a DPS mage. You shouldn't need AD on any of your runes, to put it bluntly. People like to run AD reds instead of Armor Pen reds on AD carries because it's similar damage output but easier last hitting. For a mage, you're trading damage for easier last hitting; what you should do instead is just get better at last hitting.
As for my build, I actually don't get much CDR at all. I run MPen reds, mana regen per level yellows, flat MR blues, and flat AP quints. Boots into 2 Doran's Rings and Sorc Shoes, followed by a Deathcap. Note that I'm still at 4% CDR at that point, unless I have blue. The thing about building Ionian Boots is that CDR is an incredibly easy stat to itemize for, while MPen is very rare. I would prefer to do more damage on my spells that hit than being able to throw out more spells; you'll run out of mana pretty fast if you constantly spam spells in lane.
To be fair though, my Lux build keeps changing. I used to get Morello's before it was changed for the CDR; I don't really want Deathfire because it requires getting close to my opponents. I tend to go Deathcap -> Void Staff -> Lich Bane, switching the last two if they don't build MR. By that time the game's usually over anyway.
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It's iubaris, not Lubaris.