Murrdox
First Post
I don't see any reason why someone couldn't Alter Self to gain a Bat's Blindsight ability. You'd have to transform your face into a giant Bat-face to do it though.
In order for gills to function properly, you 'd need to alter your lungs in ways you might not properly understand. But you're able to do it... so evidently Alter Self understands what you mean when you wish to create gills on someone. Likewise, I believe the spell would do whatever physical changes were necessary to grant someone a bat's blindsight ability. Most likely this would involve growing huge ears and the scrunched-up nose of a bat, since those are the things that make a bat's blindsight work.
As long as Darkvision is a natural ability, and not supernatural or extraordinary, I'd allow Alter Self to grant it. Similarly, you could Alter Self to grant yourself "Eagle Eyes" and gain a racial bonus to spot checks, or something similar.
In order for gills to function properly, you 'd need to alter your lungs in ways you might not properly understand. But you're able to do it... so evidently Alter Self understands what you mean when you wish to create gills on someone. Likewise, I believe the spell would do whatever physical changes were necessary to grant someone a bat's blindsight ability. Most likely this would involve growing huge ears and the scrunched-up nose of a bat, since those are the things that make a bat's blindsight work.
As long as Darkvision is a natural ability, and not supernatural or extraordinary, I'd allow Alter Self to grant it. Similarly, you could Alter Self to grant yourself "Eagle Eyes" and gain a racial bonus to spot checks, or something similar.