OK so I am storm and you guys know how terrible the percentage is. ( has awesome spells though :) Most grandmasters have a 15% more percentage from armor or somewhat. Well i got my storm hound to epic and its total summary is 10% storm shield and a 6% storm percentage. WOW. My storm percentage now is 20%! That kinda makes it like a life spell. Also if you buy a couple mega snack packs it helps you SO much. I got my hound up to epic in less than an hour from an adult. So don't be put down by epic because it helps sooooo much.
P.S Try to get a pet that has your school because it can give you boosts for that school. I hope this helps :-)