Hmm wizard with tanking pet is sick :D
Suggestions:
-Change trigger on lists from mouse down to click
-Show M.Atk (if there are too many stats, just separate magical stats from normal ones and add a switch button to the stat screen)
-Add magic damage to sceptres - staffs give so much MP and M.Atk it's not worth for magic users to go with Sceptre+Tome
-Bonus stat on jewelry from upgrades scales with base stat - this is nice, but low stat jewelry are useless. Change scaling to like 80%, and add a base value to scaling (like if it has a stat, it counts as 10+stat). This would also empower double rolls, and I think that would be good.
-Give bosses some skills.
-Some more spells/skills? :)
Addition to previous: You should use either "Click", or "KeyUp" event handlers instead of "KeyDown" on buttons (not sure how you call them if in flash, since I stick to C# / C++), so if I scroll with dragging, I won't click on a button.
Heyo, a suggestion: I don't like to refresh the page, can you add "Main Menu" button and a security window (so it won't close unnecessarily)? :)
Oh, and we need some Kongregate medals for this game ^^
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 "Dawn of the Dragons"){kind=icon}
 "King's Bounty: Legions"){kind=icon}