In Rooster Fights, NFT Roosters are the heart and soul of the game, representing unique digital assets with varying levels of rarity and power. These NFTs are categorized into different tiers, each with its own distinct value in $RC tokens. As players progress, they can evolve their roosters from Common tiers to more prestigious levels like Uncommon, Rare, Epic, and the coveted Royal tier by merge. Each tier significantly increases its market value, offering players both improved gameplay and potentially lucrative trading opportunities.