Feral Linguist (Greater)

This wooden whistle is stuffed with cotton and carved with images of bellowing stags, howling wolves, and chirping birds. You can blow on this whistle to use it as a catalyst when casting an Animal Form spell. When you do, you retain the ability to speak.

Once during the spell's duration, you can cast either a spell of 4th-rank or lower or a cantrip of any level, ignoring the inability to cast spells while in your battle form.