I complained about that in the past... It is not even about balance... It is about being in line with the lore

Drow are hated/feared and they are light sensitive. They are not simply a dark skinned variant of elves...

Simply please focus more on being close to the source material and less into creating new problem: so the tadpole is making me see in daylight but it still affects true souls? But if it protects me from the environment then why not allowing me to breath underwater ?