"Design a football crest featuring a pigeon as the central totem animal, combining both angelic and fierce characteristics. The pigeon should have elegant, angelic wings, but with a sharp and intimidating expression, giving it a dual nature of grace and power. The primary colors of the crest should be purple, black, and touches of white. The team name 'FISB' should be incorporated in sleek, modern typography, blending seamlessly with the design. The overall shape of the crest should be strong and professional, with clean lines and a bold, sports-oriented aesthetic."