Seawing abilities are kinda lame.
There are so many cool underwater creatures and Seawings got saddled with the lamest abilities possible. I mean bioluminescence and darkvision is cool and all, but by itself?
There are so many cool underwater creatures with interesting defence mechanisms :<
Squid ink, eletric eel bites, octopus... everything, (maybe except camuflage. So we dont double up with rainwings.), seaslug regeneration (did you know some species can regenerate up to 90% of their body. Seaslugs are cool), poison or venom (seriously there are so many poisonous stings, bites, spikes and whatever in underwater creatures im surprised RAINWINGS got it instead), more teeth like morays, mantis shrimp force.
Hell I see the fanon of "spiting boiling water" a lot, and that is way more interesting than what they got.