She's my knife flipping mage assassin in every run.

But yes, horses are big and skittish and will wreck things. The metal carriage won't get startled and is pretty Felicia Proof-- So it's an obvious choice.

Besides. Horse would drown in the fishbowl.

Too bad she isn't great at domestic tasks, though. She can't fix the clothes but she can heal minor injuries... Sometimes without a staff because being from the Ice Tribe is cool like that.