I'm a level 52 Ice wizard, soloing the game. I'm currently about half way through Dragonspyre. When will I begin getting higher level cards? Is it when I hit Celestia? Currently my highest cards are the ice giant one (560ish damage) and the helephant (maybe 700 damage).
I also have an Ice i am leveling, currently the best spell you can get is a TC in the Bazaar called Blue Phoenix, 515 -595 for 4 pips. Its a solid hit that will get you through until you get Woolly Mammoth and maintain its usefulness after as a really good low pip finisher or minion killer. Enchanted Collosus will do more for damage wise but costs 2 pips more so if you can pick some of these TCs up