What is the usefulness of this spell in the campaign? Seams that there are a shortage of animals around to cast this spell on, and any animal that a PC brings with him is going to be trained to fight. The ONLY use I can invision for this spell is to make a horse attack its rider. Which I think has only been in one mod, Cashe i think, and then the mount was a magical beast.

Generally most of the Animism Spells except for Path of the Wolf are very situation specific. But this one seams just so specific that it isnt' even a viable choice.

It certainly isn't going to get used as often as diminish fatigue, but it looks to me like it would be useful if you're fighting a master of the hounds, and there are lots of times when you fight groups of hyenas, spiders, etc. Turning one of them against the pack will theoretically remove/occupy two threats from the board. Using it against a rider's mount is actually a pretty clever application.

I have some spells on my priest which are situational, but I don't bemoan how little they are used...I am just really thankful I have the spells when those situations come up. Looks to me like bestial rage would be a relatively useful one, and potentially a gamechanger in the right situation.

Oh spiders and stuff. I keep thinking animal means mamal. Good point.