If Ardent Blaze, Lucian's W, could be cast while moving he'd be a competitive AD carry.
Right now Lucian is considered terrible for a number of reasons:
- He's a short range AD carry without a powerful steroid.
- His W isn't an effective tool for either chasing or kiting.
- His E is a relatively weak escape/gap closer.
- His ultimate is difficult to aim and doesn't do much damage.
- Lucian's short range is an issue because he can't chase or kite effectively.
- Lucian's E is underwhelming because it's insufficient to make up for his chase/kite deficiency.
- Lucian's ultimate feels week because he's often forced to use it mid-fight when he's been zoned by the tanky front line due to his range and chase/kite issues.