9. Take Advantage of the In-Game Promo Offers
Earning gold is easy enough, but amassing enough to buy new heroes is a much tougher task. Whenever you get wind of any of those in-game promo offers, take advantage of them immediately. You may spot a survey opportunity and not even give it much though. You should go ahead and finish off those offers since it gives you more gold after completing them. This survey and any other in-game promo offer you come across will grant you more gold. Remember that.
Head to the next page to find out which enhancements are available in the game!