01 - Preheat oven to 350°F.
02 - In a large bowl, blend cream cheese, sour cream, ranch dressing, buffalo sauce, garlic powder, onion powder, smoked paprika, and black pepper until smooth.
03 - Fold shredded chicken, ¾ of the cheddar, and ¾ of the mozzarella into the mixture.
04 - Transfer mixture into a greased 8-inch baking dish, smoothing the surface evenly.
05 - Evenly sprinkle remaining cheddar and mozzarella over the top.
06 - Bake for 20 to 25 minutes until the mixture is bubbly and cheese is lightly golden.
07 - Remove from oven, let cool for 5 minutes, then garnish with chopped scallions or chives.
08 - Serve warm with tortilla chips for dipping.