Even if you don't use a certain champion, keeping them in your roster increases your Total Base Hero Rating. This rating is a badge of progress and can make you more attractive to high-level Alliances. Common Misconceptions
The short answer is: you can no longer manually sell individual champions in Marvel Contest of Champions. how to sell champions on marvel contest of champions
The Arena is the best source of Gold and Units. By using your lower-tier champions (the ones you likely wanted to sell) to run streaks in the 1-star or 2-star arenas, you earn Battle Chips. These can be traded for Arena Crystals, which contain massive amounts of Gold. 2. Questing and Incursions Even if you don't use a certain champion,
In the early years of the game, selling champions for Gold and ISO-8 was a standard feature. However, Kabam removed this mechanic several years ago to protect players from accidental deletions and to shift the game’s economy toward a "collection-based" progression system. Why You Can’t Sell Champions Anymore The Arena is the best source of Gold and Units
If your goal was to sell champions to get more Gold or ISO-8, there are more efficient ways to farm those resources without losing your heroes. 1. The Arena Grind
The champion’s Signature Ability is unlocked or leveled up.