So... why are people telling me 40% CDR on Lux is bad now?
25% isn't really enough for her lousy cooldowns, and a bit of extra AP doesn't beat having a 30 second cooldown on her laser. With that CD improvement compared to 37.25 seconds, you can more liberally use her laser for pushing waves, and can actually use frequent poke on enemies who are turtling. Not to mention you could actually die from not having that shield up 1 second earlier.
Seriously, you guys, why get Zhonya over Morello when Grail is a prerequisite to support Lux's 130 mana cost E? (As for AA Staff, it takes too long for Lux to charge it.)