It is important to clarify right away that you cannot technically "sell" champions in Marvel Contest of Champions for Gold or ISO-8 like you can in other RPGs.
Instead of selling, focus on:
Executive Summary: The “Sell” button in MCOC is a trap for new players and a tool for micromanagers. how to sell champions on marvel contest of champions
Shards: You earn shards for crystals of a higher rarity (e.g., pulling a duplicate 4-star gives 5-star shards). It is important to clarify right away that
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 Shards : You earn shards for crystals of a higher rarity (e
Applicable to: 1-Star Champions only. When you are a brand new Summoner (first 24 hours), you might need 500 gold to rank up your first 2-Star. Selling a worthless 1-Star you never use is fine. You will get those 1-Stars back tomorrow from the Daily Crystal. This is low-risk.
Many players sold low-tier (1-star to 4-star) champions for quick resources, only to find they were required for special content like Back Issues (Variants) or specific milestones later on. Economy Balance: