Wherever she walks, she leaves behind a little particle trail themed like whatever spell she last cast. Her hair is much longer, perhaps waist length, and flows free behind her. She is barefoot and energetic, and she wears light traveling clothes (pants, tunic, a cloak). Her staff is now a gnarled wooden walking stick, glowing with elemental energy.
New possible phrases--
"Nature always wins in the end."
"LIGHTNING BOLT!" (during ult)
"Runeterra fights back."
"It's a jungle out there."
"From the four corners of the world!"
"The earth itself fuels me, guides me."
Q-- She fires an ice missile, freezing enemies in place.
W- Similar to Janna's shield partice, Lux manipulates the winds to protect her allies and herself
E- The earth begins to crumble where Lux points, slowing her enemies. At her command, it snaps and rumbles, causing damage.
R- LIGHTNING BOLT!
What do you think, guys?