Raven Rind

[BB Shockwave]

Can we get a guide about how the bird works?

I asked him to write a scroll, and some times later it indeed appeared... But I am unsure whether it was battles or in-game time that was needed for this to happen. Also, once when I asked whether he was hungry, he ate one Thorn Sprout, but... he could not write another scroll afterwards.

Seriously, this should be better explained by the game creators, at least in a manual.