At 5th level and every 5 levels thereafter, you boost four
different ability scores. You can use these ability boosts to
increase your ability scores above 18. Boosting an ability
score increases it by 1 if it’s already 18 or above, or by 2
if it starts out below 18.

In addition to the ancestry feat you started with, you gain
an ancestry feat at 5th level and every 4 levels thereafter.
The list of ancestry feats available to you can be found in
your ancestry’s entry in Chapter 2.

Your reflexes are lightning fast. Your proficiency rank for
Reflex saves increases to expert.