    forgingCounts[mergerTokenId]++;
        require(mergerForgePotential > 0 &&
    		        forgingCounts[mergerTokenId] <= mergerForgePotential,
    			      'forgePotential insufficient'
    );
       _tokenIds = 123 
       forgingPotential = 1 (extracted from the 5th digit of entropy).
       Initial forgingCounts for tokenId 1 is 0.
    require(
          forgePotential > 0 && forgingCounts[tokenId] < forgePotential,
          'Entity has reached its forging limit'
          );
