Could I raise it after putting it on with an ability point increase?

It sets your Int to 19. ASI don't matter. if you intellegence is above 19, then then it does nothing, if its below 19, its 19 until you take it off

Question was if I wear it, and then use an asi, does it go to 20, or is it 19 regardless (until removed)? 

It stays at 19 until removed. For example; you put in on a character with 15 Int, their score goes up to 19. adding an asi to put it up would simply make their Int 16, but the 19 would still override until it is taken off.

Put this on an animal and use something that lets you speak to it and you suddenly have a new ally!

Quote from Wolfkey >>

Put this on an animal and use something that lets you speak to it and you suddenly have a new ally!

 

Cheaper version of Awaken.

it may make you intelligent, but you'd look like an idiot wearing that! It's like a kinky princesses chain-thong for your head.

I have a pet bear and I want one of these for him. I have terrible intelligence though so the bear would  be smarter then me! : )

how would it work with an intellect devourer's devour intellect. Does Devour intellect look at your actual score or your apparent score?

actual score

is there a basic prise for this item??

You are an absolute genius!

Well, it's an uncommon item, so i think those can be anywhere from 50-500 gp, if i'm not mistaken.

Not working.  Made In Use and added to attuned items but it did not change intellect. (Nevermind found for some reason I had scores overridden)

If a battle smith's steel defender attuned to this would it then have enough intelligence to learn to speak? I suppose in RP terms the artificer would also have to install it with some sort of voice box. I feel like I'd allow it, but if it comes down to RAW interpretation I'm not so sure it would actually work because the steel defender has specific, limited functions that differentiate it from other construct creatures.

You'd have to let the animal take a short rest to attune to the item, but... good luck! 

You could stick it inside a hat

Where do you find this thing

I don't know attunement rules for animals but I'm a little skeptical of this... :|

Only issue is the animal would need to attune to it xD