In a large bowl, combine the cooked chicken, black beans, corn, red bell pepper, avocado, cherry tomatoes, red onion, and cilantro.
In a separate small bowl, whisk together the lime juice, olive oil, chili powder, cumin, salt, and pepper until well combined.
Pour the dressing over the salad mixture and toss gently to combine, ensuring everything is evenly coated.
Taste and adjust seasoning if necessary, adding more salt, pepper, or lime juice as desired.
Chill the salad in the refrigerator for at least 30 minutes before serving to allow the flavors to meld.