Animals, insects and arachnid. I can’t say I just a lot of them. The arachnid I’ve used so far never had a real impact (maybe that’s just my fault). Animals are also not really the thing you use when you want an epic encounter, so most often the animals that come into play are the ones the druid changes into.
That is why my favorite comes out of the insect category.
The Ankheg. A gigantic bug that you do not want in your house, or on the road to the next village. Part of my love for the creature comes because I did some good researched on it when I wrote my first encounter compendium post “Ankheg: Dead From Below“.
In my head Ankheg’s are something like tarantulas in our world. They exist and as long they do not jump on you everything is fine.
I also really like the idea that they become smart or get a hive mind. The possibilities to use them are endless and that’s why I love them.