User can become a swarm of firefly

Pros:
-user can produce light from their body
-user can fly
-user is naturally fast and small
-user can see in different spectrums
-user can manipulate light
-user can become a swarm of fireflies

Cons:
-user can't control light
-user must rest after long periods of flight
-user will never be tall
-user will struggle to see in human sight spectrum
-user must leave some shadows to not blind other
-user can ONLY become a swarm

Weakness: darkness
User will produce more light and annoy others