Lux is the epitome of what a balanced mage should be.
She has fantastic strengths while still having clear weaknesses. Laning is decent, but not excellent. She destroys only a couple of champions in lane (Karthus is the only one who really comes to mind), but can hold her own against almost anyone if played properly - with only a few true counters (Talon especially). She excels in team fights, but must be positioned properly and land her abilities to contribute, or risk doing being deleted by the enemy assassin(s) and doing zero damage.
Discuss.