I strongly recommend not having separate bids for the hero's color, but rather a single bid for the right to choose the color/hero. Because separate bids greatly prolong the dispute – if someone buys both the color and the hero for a decent discount (3-5K), then, depending on the situation, this may either not be noticeable at all, or it may ruin the player's chances right from the start. This is especially bad for mirror matches, as it makes them less of a true mirror match. This has been repeatedly tested in the War of the Towers. It has reached the point of absurdity – you buy a castle for a good discount, and then realize that buying the color as well is not very profitable; it's better to sell it, but for a good price (to at least partially compensate). However, the opponent also understands this, and therefore tries to also sell you the color, but also for a non-zero amount – to completely bankrupt you. Mind games begin, which, in my opinion, distorts the idea of bidding.