

It is redundant, since you can't hear at all while deafened. You can't use this feature while you are Deafened. Until the end of your turn you gain Blindsight out to a distance of 30 feet. Something like: As an action, you can emit a high frequency sound in all directions. If you hit with it, you deal piercing damage equal to 1d4 + your Strength modifier, instead of the bludgeoning damage normal for an unarmed strike. Your fanged maw is a natural weapon, which you can use to make unarmed strikes. While flying in this way, your hands are unavailable to hold objects, make melee weapon attacks, or perform somatic components for casting spells. While you are not wearing medium or heavy armor you have a flying speed of 40 feet. Other than that, I would reword some features to align better with existing race features. I would remove sunlight weakness and thunder vulnerability. You are mostly giving benefits and then canceling them out with other penalties, and I think over penalizing. In summary, they have 1 less ability score increase, weakness to sunlight (no darkvision), and vulernability to thunder damage, in exchange for 40 foot fly speed, activated blindsight, and a bite attack. However, it is severely behind the vanilla races in terms of mechanical advantages.

Overall I like this race and what you've done.

Monstrous Compendium Vol 3: Minecraft Creatures
