Well, hero ideas just should be more or less original,and there should be no ideas of "support" heroes,because it's arena=)Of course any ideas of heroes which are closed for now or are without some or abilities are welcome=)And hero's abilities must be all on one theme and fit the hero (Pale master - raising skeletons and usage of souls, Mountain king - strength and abilities depend on the form, Orcish bull - tank, Dark assasin - poison and some dark magic, and like that)
Yes,items are basic,I don't want to make powerful items (for example like in DotA), because I want the game to depend on abilities,and not on items,but of course I want to make some original items,but they shouldn't be powerful (For example - Battle axe of arcanite is a powerful item for this map)