What is the fine-grained topic of the following text: “He was smart – a lovable handful with a hilarious sense of humor.” Thunder I led the Bronco charge during the inaugural ten seasons and represented the team during Elway-led wins in Super Bowls XXXll and XXXlll. Only return the topic.
Thunder I, the Bronco team mascot during its first ten seasons and Super Bowls XXXII and XXXIII.