Can speak with animals be used to speak with magical beasts of animal-level intelligence? If not, is there some other magic that makes it possible?
Make it a monstrous companion, then awaken it?
Let me specify: I look for a way to talk with wild magical beasts.
Cast tongues on the creature (not yourself). If you want meaningful conversation, cast fox's cunning on it as well.
Yes, that will work, thanks.