How about some canine pets? Different breeds for different schools. Like the mounts which give us stats these pets can give a + 2 damage as a bonus maybe? Or something like that.
This is also something I want to see, most of these are based on spells.
Fire- Raging bull Ice- One of the penguins from the Penguins! spell ^.^ Storm- Glowbugs. Come on! This was destined to be a pet! It's perfect! Death- Lulu or winged sorrow Myth- One of those mini eagles you need to find in Mount Olympus to get the Sky Iron Hasta. Life- A cute little zebra :3 Balance- A genie?