Matchup
You are stronger early — look to snowball before your opponent scales.
Build vs Lux
Build adapted to this matchup
Starting items
Core build
Standard
Summoner spells
44%
33%Anti AD
Anti Tank
DPS
Other options
Sorcery
Stormraider's Surge
Manaflow Band
Transcendence
Scorch
Precision
Presence of Mind
Coup de Grace
Power Spikes
Strength by game phase
Cassiopeia
LuxLux's abilities
Passive, spells and ultimate
Lux's damaging spells charge the target with energy for a few seconds. Lux's next attack ignites the energy, dealing bonus magic damage (depending on Lux's level) to the target.
Cooldowns
Cooldowns by spell rank
| Level | Q | W | E | R |
|---|---|---|---|---|
| 3 | 10s | 12s | 10s | – |
| 6 | 10s | 12s | 10s | 1m |
| 9 | 10s | 11.5s | 10s | 1m |
| 11 | 10s | 11s | 10s | 50s |
| 16 | 10s | 10s | 9s | 40s |
| 18 | 10s | 10s | 8s | 40s |
Playing against Lux
How to counter and exploit weaknesses
Her entire combo depends on Q (root): stay behind your minions because it can only root the first 2 targets hit.
Her E is slow and predictable — move laterally as soon as she casts it to exit the zone before she detonates.
Lux is very vulnerable to all-ins: with no mobility and long cooldowns pre-level 6, engage after she misses Q.
Buy Cleanse or take Purify if you're an ADC — her Q root followed by burst can one-shot you in mid/late game.
Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026