I think there should be a token exchange market where we can swap tokens at a specific rate (maybe 1:1.5).
Due to the variety of game modes (along with their own market) requiring different skill sets. Some of us do not have the time and/or money to build an optimum team for all the game modes. And the items (specifically hero chips) in each markets are different.
With the exchange market, players can focus on only 1 or 2 areas and still manage to purchase items from other markets but at a higher price (due to the exchange rate).