Elemental specialization is easy to accomplish. If you are a fire mage, summon your leopard. Water mage? Panther. Air mage? Stay outside and summon your owl. You shouldn't be going indoors anyway, you airhead. Earth mage? Yup, summon your bear, but keep him off the furniture. Electricity? You got it! The lynx, which by the way is fun to tick off by petting him while standing on carpet. He hates that. Aether mage? Well, get a life ... nobody specializes in aether. Don't have a fir fam? You aren't skilled enough to persue a specialty. :-P
Voila! Five out of six specialists served. ;)