I always thought that Lucca died some time after the orphanage fire, because Lynx (and Harle of course) needed her to break the seal on FATE.
The Pros and Cons of Lucca's Battle
- Pros -
-Lucca is an extremely powerful Magic user
-Lucca's weapons, guns, are advanced, long range, devastating weapons
-Home field advantage, it's her house
-Lynx needs Lucca alive (long enough) to break the Prometheus lock
-Lucca, as mentioned in her letter to Kid, was always thinking that an attack on her, or her friends, would be likely due to what they did by changing history
-Lucca's known for having fire-protective armors, care of her father, Taban
- Cons -
-Home turf is nearly negated because...it's on FIRE!
-A load of panic-stricken kids that Lucca is more than likely trying to defend from the fire
-Lucca is outnumbered, she has to deal with the Lava Boys (is that their name?), Harle, and Lynx
-The attack is probably unexpected, regardless of Lucca's letter to Kid
So, although she's powerful, she's obviously outnumbered, surprised, and has to deal with the children, the fire, and then on top of that she's got monsters and demihumans after her as well. I think the odds were just against her...
Although there's one little thing, and that's a variable that depends on whether or not you believe Elements are stronger than Lavoid (new word?) Magic. But when it comes down to it, she just had way too much on her plate...
Where's your mom & dad, Lucca?